[Function]: Protects RJ45 connectors from dust and Oxidation extending the RJ plugs life time. [Easy to install]: this cover will fit RJ-45 plugs for only CAT6 CAT7 patch cable. [Total Size]: 25.5x13x15mm / 1*0.51*0.59 Inch [Application]: It is widely used on RJ45 plugs of TV, Modem, Router, HUB, Switch, ADSL, TV Box and so on. [Package Content]: 50 x RJ45 Boots Covers