Features Specifications:Sell Fast F Clamps  Size; nip max (mm); support max (mm); clamp width (mm); size (cm) 8"; 200; 395; 93; 92 x 26.5 x 29 12"; 300; 495; 93; 56 x 26.5 x 58 18"; 450; 645; 93; 71 x 26.5 x 43.5 24"; 600; 795; 93; 86 x 25.5 x 23 30"; 760; 955; 93; 101 x 25.5 x 23 36"; 910; 1,105; 93; 116 x 25.5 x 23 48"; 1,210; 1,405; 93; 147 x 25.5 x 18.5