KVM Tools KV5JJT7 O Ring Assortment SAE, Buna N, 1,415 Pieces, 81 # of Sizes, 70 Shore A G3729835 40 CSA Footwear Standard Not 40 CSA Footwear Standard Not Specified Footwear Style 8 in Work Boot Upper Material Leather Liner Material Gore Tex(R) Upper Material Description Full Grain Leather Completely Non Metallic No ASTM Footwear Class F2413 18 I C EH Satra Slip Test Results Dairy Tile Oily Not Tested Waterproof Type Gore Tex Insole System Ortho Lite PU Footbed Static Dissipative No Chain Saw Cut Resistant No Footwear Shank Type Fiberglass Puncture Resistant Insole No Style Number 17311 Mark II Slip Test Results Dairy Tile Oily Not Tested Chemical Resisting Sole No Footwear Sole Pattern Exclusive Design Insulation Type None Non Marking Sole Yes Metal Chip Resisting Sole No Insulation Weight None Toe Shape Round Metatarsal System No Safety Criteria Alloy Toe Valves 180 Degrees F Seal Material Check Valves EPDM Spring Material 316 Stainless Steel Mounting Orientation Check Valves Horizontal Durometer 70 Shore A Range 40 Degrees to 250 Degrees F Hardness Medium Hard Case Type Plastic Case Containing 5 Inner Cases Meets Exceeds ASTM D2000