DescriptionThis tumbling bamboo granules can be perfect for protecting the stone or filling when tumbling rocks, the bamboo granules cushion, quiet and improve the tumbling action. Reusable, can be used in each rock polishing grit cycle, very user-friendly.Features-Color:As Shown -Material:Bamboo -Size:21.00X13.00X6.00cm/8.25X5.11X2.36in -bamboo material is not easy to penetrate and contaminate, and does not cause damage to the surface of articles. -The polishing effect is uniform and delicate, and does not leave water scratches. -Suitable for polishing items of various shapes and sizes. Suitable for polishing jade, agate, crystal, gemstones, shells and other items. -In addition to jewelry making, it can also be used for polishing of glassware, metalware. -The abrasive used has high hardness, high density, and uniform particles.