Silicone O-rings VMQ Seal Ring Gasket 【Size】 - Outer diameter 6mm, inner diameter 4mm, cross-sectional diameter 1mm 【Applications】 - Widely used in hydraulic and pneumatic seals, pressure valves, gas compressors, reaction valves, heat exchangers, boilers, filters, automobiles, and machinery. * Immediate purchase welcome, silent purchase at midnight OK ◎ * First come, first served for single items * Welcome to buy in bulk, please feel free to comment * Free shipping! * Please check the actual photos for the condition of the product ♪ * Please understand and purchase the product as it is stored at home and shipped in simple packaging ◎ #☆Marilyn☆'s product list is here 21-28 ★★★★