Material: Silicone Rubber. Good Good quality.
eBay
DIY Ring Binder Albums Loose-leaf Book Hoops Opening O Ring Locking Keychain Office Binding Supplies Metal Craft Parts Supplies
Aliexpress UK
Material: Fluorine Rubber (FKM Fluororubber). Properties: Oil Resistance, Wear Resistance, Aging Resistance, Ozone Resistance, Corrosion Resistance, Acid and Alkali Resistance. Fluororubber has excellent weather resistance, anti-aging properties, high temperature resistance and ozone resistance.
eBay
5/10pcs VMQ White Silicone O Ring CS 5mm OD 15mm ~ 155mm Food Grade Silicon Sealing Washer Waterproof Insulated Gasket Rings
Aliexpress UK
(Material Composition : Premium Nitrile Butadiene Rubber (NBR) with 18%-28% acrylonitrile content. Material: Nitrile Rubber （NBR). ✔ Outstanding oil resistance (mineral oil/hydraulic oil/lubricating oil).
eBay
10PCS M4-M18 Rubber Gasket Nitrile Rubber Oil Resistant Sealing Ring Waterproof NBR Washers Flat Shock Absorbing O Ring Tap Seal
Aliexpress UK
Material: FKM。. -Colour:Black、Brown。. -Good toughness, not easy to break, hardness Shore 70 degrees。. -Temperature Range: -25℃~ +300℃。. Good Good quality. ● Good quality.
eBay
A78E-O-Ring Sealing Ring for KARCHER High Pressure Washer Professional Pressure Washer Spare Part Set Seals TR 2.880-001.0
Aliexpress UK
Good physiological stability, ozone resistance, UV resistance and so on. (4) Good dielectric properties, better than ordinary organic rubber at high temperature, ozone resistance. Material: Silicone Rubber.
eBay
5Pcs O Ring Seal For 38mm Bath Sink Basin Drain Plug Rubber Seal Replacement Ring Save Your Old Leaky Plug Stretcheable Seals
Aliexpress UK
Description: Material: Silicone Rubber Colour:White Cross Section Diameter: 20mm 18mm 16mm14mm 12mm 10mm 9mm 8mm 7mm 6mm 5mm 4mm 3.5mm 3mm 2.5mm 2mm 1.5mm 1mm Hardness (Shore 00): 35~75 Temperature: -70°C to +250°C. O Ring line cord Foaming rubber molding damper waterproof foamed , soft and fleaxiable
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Barrow G1/4 Fitting O-ring seal rubber ring 10pcs
Aliexpress UK
Properties: Water Resistance, Wear Resistance, Aging Resistance, Ozone Resistance, Corrosion Resistance, Acid and Alkali Resistance. Material: Silicone Rubber (VMQ). Shape: Round. Due to monitor error, the picture and the actual color have a slight error, and do not affect the good quality of the product.
eBay
10Pcs PTFE Sealing Rings, 2mm/3mm Thickness, ID 3mm-66mm & OD 8mm-75mm, Flat PTFE O-Ring Gaskets for Industrial, Plumbing
Aliexpress UK
Properties: Water Resistance, Wear Resistance, Aging Resistance, Ozone Resistance, Corrosion Resistance, Acid and Alkali Resistance. Material: Silicone Rubber (VMQ). Shape: Round. Due to monitor error, the picture and the actual color have a slight error, and do not affect the good quality of the product.
eBay
580/180Pcs Stainless Steel Flat Washer Plain Washer Oring Gasket Set of Rings Assortment Kit for Sump Plugs M2 M3 M4 M5 M6 M8
Aliexpress UK