Bowl tones for about 1 1/2 minutes compared to another brand I have that only tones for between 14 and 17 seconds. I now have two Top Fund Bowls and I am very pleased with both. They sing for a long time with just one tap and have a beautiful sound. This one came in a carrying case packed in 3 other boxes. No way this was going to get broken in transit. Very pleased with this bowl.I have wanted to explore the singing bowls for a while. I go to sleep almost every time listening to them play - I find them incredibly relaxing. I was a bit afraid that when I got them, I'd put them up and they'd get broken by a kitty, so I was quite relieved when I saw the cases they came in. The cases are very nice with a fitted form that the bowls sit in, and they are well padded.I took to the bowls right off and was able to have them singing LOUD AND CLEAR within fifteen minutes, and with a bit more practice, 2 hours later I was able to control the volume so that I felt I was getting the benefit and yet controlling the sound so it was more comfortable. I think if you can keep a steady hand at all, you can probably play these. They come with a suede wrapped ceramic or quartz? stick that is hollow. I find that it only takes a light tap and just let your hand follow the tone, then control the volume with speed. For me it was intuitive. My 23 year old son also picked it up easily.The B is clear and beautiful. If you can get it going really steady, harmonics start to layer on the sound as the volume starts to get rather loud. I can FEEL that like vibrations hitting me. I play brass instruments, and have for years, but I haven't ever felt sound quite like this before. It's sort of like the effect you get at a loud rock concert, or when a car with really thumping bass goes by- but it's not bass and it's not anything like that sort of volume.These come with O rings to sit them on. I find you can hold one in your hand and play it too, but they are a really too big to do that for long.After I had a session using "F" and "B" I felt very eased and relaxed. I look forward to working with these more.They are beautiful.They are made of melted, crushed quartz. They are frosted on the outside and smooth like glass inside. I find each different bowl has a slightly different 'feel' to the way it sings. The F tone itself is very accurate. It reads perfectly on an electronic tuner.This was a gift for my daughter’s birthday. She just loves the sound. Got her the bowl in “F” key for heart chakra. Beautiful.I left a review of the three bowl set as well and many of the same issues I expressed there apply here.These bowls are an okay deal for the price, BUT they have a few issues you should be aware of, especially if you are a professional sound healer or use them in music.THE GOOD:- The travel bag is wonderful since I do sound baths in different locations. It is sturdy and seems like it will last a long time. The cloth bag is a little difficult to put back on because of the rough texture. I’ve found if I spread it open, place the bowl on the bottom of the inside of the bag, then pull the sides of the bag up around the bowl, that makes it easier. Overall great way to transport them. This is the main reason I chose this brand.- The ring and sustain are lovely, very resonant. The mallets they send are okay, but I highly recommend finding some rubber or silicone mallets to get the best sound.THE BAD:- Even if you select the tuning you prefer (432 or 440), the bowls are not exactly in tune with either scale. My A is 5 cents flat. This is a consistent problem with this brand. Ultimately this doesn’t make a huge difference with my clients, but since I also write and record music with these, I was very much hoping the bowl would be tuned properly. I don’t see the point of advertising different tunings, if the bowls aren’t even in tune the way you advertise.Bottom line: I will keep these bowls and use them for now, but will eventually need to replace them with a more accurately tuned set. Sound healing is not an exact science, but if you advertise your scale is tuned to A-440 or A-432, the bowls should all match that tuning. As someone with over 25 years of musical training (in the US/European tradition), the difference is very noticeable.I teach sound bath meditation and love using these crystal bowls. I purchased the crystal ones with color. I have an 8 inch, couple 10 inch and mostly 12 inch. I find I like the 12 inch sound and how long it holds the best. The 10 inch is good but the singing of it lasts for about 20 - 30 seconds. I have seen a diff with the mallets - with the smaller bowl the the stick mallet is better which you have to buy separate. I know many use a swede stick mallet but I like my rubber stick mallet the best; You hear less of the ringing as you go around. I have seen reviews of others of course. First off you keep the bowl wrapped in the plastic when you put it in the carrying case so it can slip in and out. You shouldn't bang it hard. I barely have to push to get the bowl to sing. My students really love the sounds. I need a couple more and those will prob be 14 inch. I'm not a fan of the 8 inch - I use it more like a chime than a ringing. My bigger prob is finding the storage and portable carrying cases. I hope this helps.This singing bowl is really epic. The carrying case is fantastic! The interior is padded to protect the delicate bowl inside. Is quite a well made case. Bowl itself was bigger than I expected which is a good thing. The tone it produced is delightful. This is the F model which is heart chakra I believe. Use is simple, take the stick and simply slide it along the outside of the bowl and it sings. The instructions say to strike the bowl and then “chase the sound with the mallet” and this was the first time I had heard of striking first instead of simply rolling around the edge of the bowl. Sound is clear and louder than I expected! You do not need talent to do this, much like making a drinking glass sing with your finger. The sound is lovely. Highly recommended!This is my second singing bowl from them. And quality absolutely ? sound is ? definitely will be ordering others from this seller too. Love my singing bowls❤️Always getting delivered to the U.K. way before the deadline, which is absolutely amazing. Thank you. ?Purchased F note and G note 8 inch. They are both amazing, sing beautifully with suede striker,is as advertised. If you want one get one, you know you are worth it.Beautiful bowl.Very disappointed- its a gamble to buy a bowl from here - bought two bowls one was fine despite the box crushed .Oddly the intact box Had the shattered bowl - inside the carrying case - little pieces of orange glass everywhere when i opened protective bag - went through the hassle and my expense to return it - so much for stress relief tool - lolThe bowl that made it is average quality- I would recommend buying a good healing set elsewhereSuper beau et bon son,chakras du coeur...Je vais lui faire attention,le plus beau que j ai vu à datte in my entiere life!