Features 1、100% brand new and high quality. 2、Made of rubber, non-slip material, durable in use 3、Used to store sand drum or belt polishing sand, shape, groove, fiberglass, etc. 4、The 1/8” upper shank size is suitable for small holes and other rotating tools. 5、Suitable for professional use or home use Specification Features: 1. 100% brand new and high quality 2. Made of rubber, non-slip material, durable in use 3. Used to store sand drum or belt polishing sand, shape, groove, fiberglass, etc. 4. The 1/8" upper shank size is suitable for small holes and other rotating tools. 5. Suitable for professional use or home use Specification: Condition: 100% Brand New Material: Rubber, Iron Rod Diameter: 3.175mm(1/8) Mandril Diameter: 12.7mm(1/2") Rod Diameter: 3.0mm Weight: Approx. 57g / 2.0oz Package List: 12Pcs Drum Rubber Mandrel Package List