2pcs Door Closers, Automatic Door Closer Mechanical Speed Control Up to 40KG, Come with Hex Key and Screws

General descriptionCan hold door weights up to 40 kg - Pair of door closers (up to 20 kg - 1 door closer). Suitable for different types of doors.Technical specificationsMaximum door weight: 40 kg (20 kg per closer)Minimum door frame width: greater than 3 cmDrop tolerance: must not exceed 3 mmInstallationMust be installed in the middle of the door if using one closerSimple installation with all required fixings includedUsageAdjustable tension to control door closing forceUse the hex key to adjust by turning clockwise or counterclockwise