407 Pieces Inch Universal O-Ring Kit, Set of 32 USA Standard Sizes, Buna-N 70A, Rubber Seals O Rings, for Faucet, Professional Plumbing, Automotive metric flame retardant and insulation

flame retardant and insulation

are durable

HANDY PACKING: All hex nuts are well packed in a double sided storage box with thickened latch and dividers

with advanced galvanizing technology and a zinc coating to prevent rust and ensure a smooth surface without rusting

407 Pieces Inch Universal O-Ring Kit, Set of 32 USA Standard Sizes, Buna-N 70A, Rubber Seals O Rings, for Faucet, Professional Plumbing, Automotive metric flame retardant and insulation32 inch sizes, total 407 pieces. Made of Nitrile (NBR) 70 shore material, are durable, high temperature resistance, anti static, oil resistant, UV resistance, wear resistant. All orings has a super soft structure, good extensibility, not easy to tear, not easy to deform, flexibly used in a variety of purposes, and convenient to use.