This is the Ofna Engine Bearing Puller for .21 engines with bearings that have a 7mm, 13mm or 14mm inside diameter. FEATURES: Removes and installs engine crankcase bearings without heat Steel and aluminum alloy construction INCLUDES: Long Screw, Hammer Disc, 13mm Silver Colored Puller, 14mm Black Colored Puller, 13mm Silver Colored Case Guide, Bearing Hammer, 7mm Puller, 4mm Hex Wrench, 6mm Hex Wrench, 14mm Black Colored Case Guide, instruction sheet and plastic storage case REQUIRES: Use following the included instructions sheet kpm01/16/2007 ir/jxs