I bought a set from Eastwood. It includes the long board and a variety of shorter ones. The short thin one was very valuable because you could bend it a bit to the contour of a curve. I bought two roles of adhesive backed sandpaper. Just cut to the size of the Durablock and adhere it. Works great. The sandpaper works with my other long board sanders including the air powered ones. You can live without the Durablocks, but I thought it was worth it. I especially like that some will bend slightly if you need them to.I bought the starter set, about $50 I think.