Silicone Rubber O-Ring Assortment Kit 225 Pieces 15 Sizes Metric Vmq, White Product Features ?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. Shipping: Shipping is complimentary within the lower 48 US States. We Do Not Ship to PO/APO Boxes, HI or Alaska We Do Not Ship Outside of the Continental US All items ship within 24-72 hours of Payment For large items that require Freight shipping a valid phone number is required to call and schedule your delivery Terms of Sale and Feedback: Feedback is extremely important to us and If you are satisfied with our transaction, please take a moment to leave Positive Feedback. YOUR Satisfaction is our #1 Priority! If there are any issues, PLEASE contact us BEFORE leaving a neutral or negative rating so that we may resolve any concerns. We PROMISE we can make you happy if you give us a fair chance. Returns / Concerns: All items qualify for returns within 14 - 30 days of receipt. Buyer is responsible for return shipping on any item that is not damaged Please be sure this is an item you want before making your purchase. Customer Satisfaction is our TOP priority! All items are IN STOCK at time of listing. Inventory changes constantly and it is impossible to maintain a perfectly accurate count of all items. Please do not penalize us if we have to issue you a refund! Thank You For Your Business!