Cork Block- Used with all types of sandpaper and finishing paper for a level sanding job. 4"x2"x1"
Rubber Block- Designed to fit the hand comfortably, this Rubber Block is
Always a flat surface. It will never swell or warp when wet, and never
shallow out a repair. Use with Nylon Abrasive Pads for uniform scuff sanding. Cover with Micro-Mesh paper for hi-gloss finishes. Cover with cloth for use with water based compound or solvent based compounds for buffing. 3 3/4"x 2"x1"