O Ring Kit, Sae And Metric Sizes, Nitrile-70A, Rubber Seals O Rings Product Details High Quality:Made of Nitrile (NBR) 70 shore material,are durable,high temperature resistance,anti static,oil resistant,UV resistance,wear resistant. Multi size:This orings set includes SAE 407 O-rings and metric 419 O-rings in the 32 most needed sizes,SAE sizes from 1/8? I.D. x 1/4? O.D. to 2? I.D. x 2-1/4? O.D.,Metric sizes from 3 mm I.D. to 50 mm I.D.,can meet almost all your needs.You also can get four pieces o-ring pick and hook tools,it can let you to remove o rings,various seals and bushings more easily Also it?s very convenient to work when repairing cars,faucets,pipes,hydraulics, pneumatic machines and ect. Wide Application:Use for plumbing,machinery,hydraulic pneumatic repairs,water faucet, garages,workshops,cars,doors and Windows, electrical appliances, bearings, pumps, idlers, etc. Handy Packing: SAE 407 oring kit,metric 419 oring kit and o-ring tools put into a color box. Each size o rings separated and organized,that makes more convenient to carry, select and collect. Customer Service: You are unhappy for any reason, return your kit with no questions asked and BUSY-CORNER will provide a full refund. Payment We accept PayPal and credit cards via PayPal. Taxes - US We collect sales tax, as required by law. Shipping We make every effort of shipping within 3 business day of payment clearing. The estimated delivery time is 2 - 5 business days from the shipping date. Policies If you do need to return your item, please contact us via email (you will receive an email when your product ships with additional details - Subject: Important information about your purchase). You will then be provided with a return shipping label and packing slip. Pack the item carefully. Include the packing slip, apply the shipping label, and return the item within 30 business days of the date you request a return, or your return will be canceled. Once we receive your order we will inspect the return. Please allow up to 5 business days of receiving the returned item for your refund.