The Lot-o-Tumbler is clearly one of the best vibratory tumblers on the market. Its 4.5lb capacity barrel is a great size for both hobbyists and professionals alike. Its soft rubber barrel also makes it one of the quietest vibratory tumblers out there. Mounting is key with these tumblers so be sure to read the detailed mounting instructions before you purchase. See a Lot-o-Tumbler in action here!