Silicone Rubber O-Ring Assortment Kit 225 Pieces 15 Sizes Metric Vmq, White Product Details ?SIZE? 15 different metric sizes from 6mm O.D. to 20mm O.D.(Size detail pls ref to the pics). 225 pieces o-rings with separated clear plastic storage case. ?MATERIAL?The O ring is made by nontoxic silicone with smooth surface, safe and environmentally friendly, and without smell. 50A shore hardness, antistatic, good elasticity, waterproof, temperature,ozone and aging resistance, good sealing performance, and can be insulated. Great temperature resistant performance: -30? (-22?) to 200? (392?). ?MEDIUM RESISTANCE?It has good resistance to detergent, salt water, engine and transmission oil, non-petroleum brake fluid, hydraulic fluids that resist fire, vegetable and animal oils, and high molecular weight chlorinated aromatic hydrocarbons. ?FEATURE?Silicone O rings round in cross-section to provide a seal between cylindrical overlapping surfaces, and are commonly seen in engines, flanges, valves, pipe and various cylinders. ?APPLICATION?Widely used for Hydraulics and Pneumatics sealing, pressure valve, gas compressor, reaction valve, heat exchanger, boiler, filter, mechanical?boiler, filter, blender, coffee machine, plumbing, automotive, mechanical keyboards, household electrical appliance, electronic instruments etc. 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.