Anti-Dust Cover Plug for Female RJ45 Port Material: High Quality Soft Silicone; Color: Black Over Size: 12 x 10 x 7mm/0.5'' x 0.4'' X 0.28"(L*W*H) Protect RJ45 Female Port from Dust,Liquid and Oxidation; Keep the port contact points durable and clean to make sure the data connection reliable, stable and high speed Package Content: 125 Pcs RJ45 Anti-dust Cover Plugs