Features 1、Made of corundum which is wear resistance, have good polishing effect. 2、It is an efficient polishing tool of deburring and surface polishing. 3、High hardness and durable, good abrasion resistance & grinding performance. 4、Can be used for stone / wood preliminary polishing and polishing. 5、Suitable for pneumatic, electric rotary grinding machine. Specification Features: Made of corundum which is wear resistance, have good polishing effect. It is an efficient polishing tool of deburring and surface polishing. High hardness and durable, good abrasion resistance & grinding performance. Can be used for stone / wood preliminary polishing and polishing. Suitable for pneumatic, electric rotary grinding machine. Specification: Material: Corundum Weight: Approx. 225g/7.9oz Size: as pictures shown Color & Grit: White, 46#; White, 120#; Red, 46#; Red 120# (Optional) Package List: 1 x Corundum Grinding Wheel Package List