[Function]: Protects RJ45 connectors from dust and Oxidation extending the RJ plug's life time. [Easy to install]: this cover will fit RJ-45 plugs for any Cat5 Cat5E Cat6 patch cable. [Total Size]: 25.5x14x14.5mm / 1*0.55*0.57 Inch [Application]: It is widely used on RJ45 plugs of TV, Modem, Router, HUB, Switch, ADSL, TV Box and so on. [Package Content]: 100 x RJ45 Boots Covers