Silicone Rubber O Ring Assortment Kit, 15 Sizes, Silicone Flexible, Pieces Product Details Attributes: What Is Included: Applications Features: Useful Tips: ? Rubber Gasket Ring Size --- With 15 different metric sizes from 6mm to 20mm OD, each size is labeled and organized for easy selection. It can be used for car, air conditioner maintenance, water joint water pipe leak repair, etc. ? Wide Applications --- These o-rings are flexible, widely used in hydraulics and pneumatics sealing, pressure valves, gas compressors, reaction valves, heat exchanger, boilers, filters, and mechanical sealing. ? Enough Quantity --- This set includes 225 o-rings, conveniently stored in a clear plastic case. ? Silicone --- Made of standard silicone (VMQ), weather resistance, corrosion resistance, waterproof, deformation and wear resistance. these o-rings have a wide temperature range from -22? (-30?) to 392? (200?). ? Useful Tips --- Proper installation is essential for optimal sealing. Regularly inspect for wear and tear, and replace as needed to maintain effectiveness. 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.