Product Description:Name: Hole PlugsMaterial:Silicone RubberColor: black, white,grey,transparentSize description:A=7.5mmB=11.5mmC=4mmD=2mmE=5mmIf you wish other sizes, please contact us.Temperature resistance: -40℃ to +250℃Features:Silicone rubber is a gentle and elastic materials with nice sealing type, hot temperature resistance, anti-aging, acid and alkali corrosion resistance.The records is for reference only, please confer with the actual product!Package Include:According to your Choose!