Premium insulated ABS materialchild proof outlet covers are made of premium ABS material, which has electrical insulation properties, odorless, non-toxic, eco-friendly and harmless to babies. The thickened material makes each outlet cover sturdy and durable and is not easy to break in the outlet.^ UPGRADED HIDDEN RING-PULL HANDLE Hidden ring-pull handle design allows adults to pull out the outlet cover with the handle easily but makes it difficult for kids to open.^ 52 pack Combination packaging26 pieces 3 prong outlet plugs cover for plus 26 pieces 2 prong outlet plugs cover.Convenient for most American families.^ KEEP YOUR CHILDREN AWAY FROM DANGERElectric outlets Will inevitably exist in the home of each of us, Baby outlet covers and are produced to keep children away from electric hazards, keeping babies safe.^ EASY TO INSTALL AND REMOVENo tools are needed to install the outlet plug covers. 1.Press the outlet cover into the outlet.2.Pull the handle in the direction indicated. 3.Hold up the ring-pull handle. 4.Pull out the outlet cover.