DMM Impact Block (XS) Color:Green Silver it offers a 4:1 or it offers a 4:1 or 5:1 lifting ratio with an efficiency of 91 % Notch X Rigging XL Beast Whoopie Sling Tenex 3 4IN 3FT 5FT while the all new hollow axle design facilitates complex rigging configurations and allows for maintenance such as servicing of the bearings or replacement of the sheave (hollow axle max Product Name Product Code Colour MBS WLL Dimensions Weight Rope Diameter Certification Impact Blocks XS Green IMB XSGR Green Silver 100kN 20kN 140 x 82 x 60mm 780g 16mm Max EN12278:2007 Impact Blocks XS Matt Grey IMB XSMG Matt Grey 100kN 20kN 140 x 82 x 60mm 780g 16mm Max EN12278:2007 Impact Blocks S Titanium Green IMB S Titanium Green 200kN 40kN 180 x 100 x 70mm 1860g 16mm Max EN12278:2007 Impact Blocks L Bronze Lime IMB L Bronze Lime 300kN 60kN 230 x 125 x 90mm 3470g 20mm Max EN12278:2007