Glide Bowl Turner's 4-Piece Toolrest Set: Reach far into the interior of bowls with ease with these 4 invaluable toolrests. These comfortable, ergonomically designed toolrests that will provide you all-day turning support. With the unique concave design, your fingers will fit snuggly on the rest and let you get closer to your work. The ultra smooth, round hardened steel top let will let you effortlessly glide your lathe tool for superior results. All rests have hardened rods welded over 5/8 in. curved barstock 4 in. long top to bottom. 1) S Curved tolrest, 9 in. span. Use the S curved toolrest for exterior and interior hollowing. 3-3/4 in. long top to bottom. 2) 2-1/2 in. Radius curved toolrest, 6-3/4 in. span. Use the 2 1/2 in. radius curved toolrest for exterior and interior hollowing. 3-3/4 in. long top to bottom. 3) 2 in. radius curved toolrest, 6-1/2 in. span. Use the 2 in. radius curved toolrest for exterior and interior hollowing. 4 in. long top to bottom. 4) 1-1/2 in. radius curved toolrest, 8 in. span. Use the 1-1/2 in. radius curved toolrest for interior work, deeper penetration and sharper corners inside the bowl. 4" long top to bottom.