Bar for Hinged/Sliding Door & Window: The safety bar can be transferred from door jammer to window stoppers by changing the end. Upgraded Security door bar with 26-50” adjustable length enhances home security for family & kidsProfessional Strength: Adopted premium metal material, 1.1” diameter pole with 0.8mm thickness holds 400lbs pressure. Blocking thieves / beast / Burglar /Hurricane out of the door/window. Feeling safety at day and nightUpgraded Slip-proof Base: Rubbery base increases the friction between door jammer door stopper and the floor. Hardwood, ceramic tile, concrete and full carpet are accepted. No need to worry about slippingPortable & Lightweight: Detachable design and lightweight advantage, whenever you go, take it with you. This burglar bar is perfect for homes, apartments, dorms, hotels, or travel, making you always have securityInstant Installation without Tools: No tools, 2min assemble process, easy to place the stick under various doorknobs and take off quickly. If you get questions, let us know, glad to help