3 in 1 security bar: This door security bar can be used to reinforce most hinged or sliding door and windows. For indoor use only. 19 to 52" adjustable: Door security bar consisted of telescoping and splicing extension rod allows for maximum adaptability to fit most standard doors and frames. Enhance your safety: Our door security bar can resist up to 40lbs of force, prevents unwanted entry by intruders or burglars. Works as door stopper or window lock to keep child or pets from opening doors or windows. Non slip and non scratch: Rubberized grip on the bottom of the door stopper prevents slipping and scratching. Pivoting ball joint allows you to adjust the angle of the bar for optimal performance. Portable: This door security bar can be easily removed, broken down and stored when not in use. The lightweight and compact design makes it ideal for travel or home use.