Webb Abrasives   Foam Sanding Blocks    > Hand Pad    > Detail Pad    > Standard Pad    > Combo Block    > Z-Foam Block    > Z-Foam Bar    > Double Slant   Sandpaper   Disks   Non-woven   Tools and Belts Webb Worldwide Medical Products   Embroidery   Screen Printing Z Foam Block: -2 grit choices, fine on one side /medium on other side or medium/coarse. -Flexible sanding surface that won't tear with use                             -Long lasting grit that stays on the block  -Washable with water -2 5/8" x 3 7/8" x 1"