If you\'ve every tried to sand the style lines in bodywork with a folded up piece of sand paper you know how easy it is to lose the sharpness of the details. Soft Rounded Edges Eliminate Gouging Lightweight Design for comfort No Matter How They Are Held Extremely Durable and Resistant to Most Solvents Tapered Edges for Sanding Hard To Access Areas Blocks Maintain Curvature Until Sandpaper is Removed These closed cell foam blocks are molded in 6 different hardness\'s, in a wide range of profiles, to fit most detail sanding needs. 16 inches in length and works with 2.75 In. wide adhesive backed sand paper. Tapered round edges prevent gouging. Pliable and durable. Kit also included 6 sheets of sandpaper and an instructional DVD. SOFT-SANDERS™ were designed by a professional body man for body men to provide them with an innovative manual sander that would both improve their efficiency and the quality of their work. They can be reconfigured to take the shape of any surface being sanded and hold that shape when used in conjunction with PSA sandpaper that “locks” the desired shape into place until the task is finished.