Usage Tips:【Complete Accessories】Includes all the accessories that are easily damaged in the daily work of the drum polishing machine. 【Durable Material】The conveyor belt, transmission gear chain, and black sealing rings are all made of alloy and rubber, with stronger toughness, durability and longer service life. 【Feature】Exquisite workmanship, high efficiency for jewelry polishing, convenient to use. Great replacement kit for Jewelry rotary tumbler accessories. 【Easy to Replace】The operation is simple, and beginners can easily complete the replacement process. 【Application】 This mini jewelry rotary tumbler polisher replacement set is suitable for drum jewelry polishing machine. Practical and necessary polishing tools for jewelry makers. Package Includes: 3 Conveyor Belt 1 Barrel Cover 1 Barrel Lock 1 Barrel 1 Sealing Rings Note: Please allow slightly errors due to manual measurement and different monitors.