Get an professional finish with top-of-the-line sanding blocks from Dura-Block. Great for wet or dry sanding, the blocks are made from patented closed-cell EVA rubber. They are sized and shaped to create flawlessly flat surfaces and/or detailed contours without ripples or gouging. The AF4415: -Use for totally flat surfaces -Uses 2-3/4" Width PSA (Pressure Sensitive Adhesive) Paper in cut lengths or rolls 1-1/2" height x 2-5/8" width x 11" length