Busy-Corner 495 Pieces Sae Metric O Ring Kit With O-Ring Pick , Green Green Product Details 1.High Quality:Made of Nitrile (NBR) 70 shore material,are durable,high temperature resistance,anti static,oil resistant,UV resistance,wear resistant. 2.Multi size: You can get a good selection of 36 different sizes o ring that come in handy,can meet almost all your needs.You also can get one piece o-ring tool,it can let you to remove o rings,various seals and bushings more easily. 3.Wide Application: Nitrile rubber is the most widely used o-ring material all over the word.it?s use for cylinder,car air conditioning (A/C system), pump,automobile,roller auto,home appliances,furniture,faucet,electronic appliances,doors,windows,bearing,pump garages,general plumbers,mechanics,workshop etc. 4.Handy Packing: Equipped with a transparent plastic box, all O Rings are well placed in separated small grid-shape space, that makes more convenient to carry, select and collect. 5.Customer Service: You are unhappy for any reason, return your kit with no questions asked and we 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.