Easy to Install---No Adhesive, no drill and tools need,no harm to the door.Take off the door knob cover than set it on the door knob and close the two covers,the door knob is in lock. Special Design---Special double button with soft TPR increased friction with the door knob.When you need to open the door,press the doublr buttons and turn the door knob. Why need it---Prevent babies open the door and get into the toilet or the storeroom and get injured;Prevent babies go out of the house without adults' perform superision;Prevent children play with the door and pinching their fingers. Safety & Eco-Friendly---Made of Eco-Friendly PP and TPR .EUDEMON baby safty door knob cover has pass Mechanical and Physical Properties test.(EN71) Easy to Remove---It can be easily removed by screwdriver.

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