770pcs Rubber O Ring Assortment Kits 18 Sizes Sealing Gasket Washer Made of Nitrile Rubber NBR by HongWay for Car Auto Vehicle Repair, Professional Plumbing, Air or Gas Connections - - Amazon.com
Amazon.com: uxcell Silicone O-Ring, 10mm OD, 4mm ID, 3mm Width, VMQ Seal Rings Gasket, White, Pack of 10: Home Improvement
Amazon.com: Rubber O-Ring Sound Dampeners for Mechanical Gmaing Keyboard 144 pcs by Qisan(White): Computers & Accessories