..recieved the parcel..thank you seller
Boss very helpful. Told me to keep disc once worn out and keep base. Pit on normal sandpaper discs n fit pn cutting sides. Saves lots pf money.
Not sure of material but doesn't last very long.
DXBT 4Inches Flap Sanding Disc. Grits 60 80 120 180 240. High performance. 16mm bore diameter. Metal stainless steel grinding. Maximum 10000RPM.