[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 CAT5 CAT5e patch cable. [Total Size]: 32x11.6x13mm / 1.26*0.46*0.51 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