Features: *The disc pad is made of polyurethane and the shank is stainless steel made. *Suitable for most kinds of rotary tools, such as die grinders, air grinders, electric drills, etc. *Widely applicable in various surface buffing and cleaning, such as metal derusting, glass and ceramic polishing, marble, automotive and wood floor polishing, etc. Specifications: *Item type: Self-adhesive type grinder polishing disc *Material: polyurethane+metal *Color: Black, Yellow, Silver *Diameter: approx. 3" /80mm, 4" /100mm,5" /125mm, 6" /150mm, 7" /180mm (optional) *Adapter thread: 10mm/14mm *Shank: Hex shank Package Included: 1 x Backing Pad 1 x Drill Adapter Notes: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2. Please allow slight manual measurement deviation for the data.