4pcs Sash Jammers are designed to provide additional security for upvc doors or windows. Easy to use Delivered with fixing screws and button spacers, practices to install. Can be turned 90 degrees, a simple twisting of the jammer's arm locks it or release it. Durable design solid aluminum alloy construction and a screw is designed at the back of the base To reinforce the arms of the jamming, thus avoiding the game. Anti-wear buffer Including the anti-wear buffer, can reduce the friction between the jammer arm and windows, protect your windows or Your door against scratches. White decoration finished White powder coated finish and screw protection caps allowing this frame jammer to match your windows or doors. > Size: 4pcs | Color: White Aluminum Alloy Description: Easy to assemble and use chassis jammers can be used both, windows and upvc doors. Easy to assemble and offers excellent extra security - just switch to fix the frame handle. Ideal solution for those who are worried about a current burglary technique called "lever". Having a doe foot, it's stalking the place window mechanism. Features: 100% new and high quality Improve security From your window or upvc door Easy to install and delivered with mounting screws and protective caps Specifications: 1. Material: Aluminum alloy 2. Improve the security of windows and upvc doors 3. Color: White Package Included: 4 x Window lock 4 x Button spacers 12 x Screw lids