1. Thickness: 3.0mm External diameter:57.2mm Inner diameter: 53.2 mm 2.It's widely used in various lamps on the seal.

1.Material: It's made of Natural  Silicone.2.the product mail was usde in lamp, wallklamp, outdoor lamp, energy saving lamp sealing on the facility.3.the product was used for various electronic product, electrical appliances, machinery part sealing on the facility.

silicone o-ring