Kootans 1200Pcs Nitrile Rubber O Ring Kit 24 Sizes O Rings Assortment Kit, Rings Product Features ?GOOD MATERIAL?Made of high quality commercial grade nitrile rubber (NBR, Buna-N) material, great water and oil resistance, great heat resistant, good sealing, corrosion resistant, wear resistant, anti static. Durable and long service life. Great heat resistant performance: -40? (-40?) to 120? ( 248?). ?PRODUCT FEATURE?Soft and flexible o rings, simply snap on, easy to install. With 1 set of high quality O-ring sealing hooks as a gift --- it can let you to remove o rings and various seals easily. The two ends of the aluminum alloy rod can install two hooks to meet your different needs. ?POPULAR SIZES?24 Popular Sizes O-Ring Sealing Washer. You may not don't know what size you need. Fortunately, all the sizes of this O-ring kit are enough to allow you to cope with various family needs. Metric sizes from 6mm to 28mm O.D., according to different sizes provide 1.5mm/2.4mm/3.1mm 3 reasonable thicknesses. For more details, please refer to our size picture. ?CONVENIENT STORAGE?1200 pieces NBR rubber o rings are stored in a sturdy transparent plastic box with labels, saves you effort in tidying up and choosing sizes. And 1200 pieces are enough that will keep you going for months or even years. You don't have to go to a hardware store. ?WIDE APPLICATION?Nitrile rubber metric o rings prevent leaks in fuel or water plumbing, machinery, hydraulic, and pneumatic connection; provide secure seals for any oil, air, gas, and water seal application(faucet, sinks, filters). Used to electronic equipment, pipes, tap faucets, pumps, solenoids, gauges, sensors, trucks, cars, motorcycles, boats, engines, spray guns, pressure washers, and more. 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!