I'm on my 3rd vibratory tumbler in 10 years. About to give them up. 1st 2 were Franklin Armory and they lasted about 3 yrs each. Then I bought a Harbor freight Chinese (identical, except color) model for 1/2 cost. Just died on me. 3 years. I'm going to settle on a Thumblers tumbler that I've had for 30 years only in a bit larger capacity and quit fooling around.