These child proof outlet covers are designed to be much easier for adults to remove when they wanted to use the outlet. The baby proofing outlet covers are made of ABS plastic which has excellent electric insulation properties. These outlet plug covers have a smooth finished surface with no burrs so no matter how your babies try to play with it, it will never hurt your babies' finger. Features -Material: ABS -Size: 3.00X2.50X2.00cm/1.18X0.98X0.79in. - They are secure and fit tight in the sockets. Help children stay from accidental electric shocking. - Useful socket protective covers are safe and reliable, to prevent children touching . - Hard to be caught by kids, good socket protection cover for home and baby room. - It has a simple design, but very practical in use, giving you a . - It is manufactured with technology to ensure the of the product and can work for a long time. Package list: 6 -prong plug covers 6 x 3-prong plug covers