I am 8, This product was quite good....until it broke. I got about one and a half batches before it leaked. Ruined a spot on our rug. I followed the instructions on the box did nothing wrong.Broke in 3 weeks,I put the right amount of rocks in the tumbler.But it still leaked, I am very frustrated over it but we did not protect the outside of the barrel at all.Over all I recommend if you protect the barrel from leaks GOOD PRODUCT.