This is an auxiliary lock that can be attached to sash windows for crime prevention. Unused and unopened, it has been stored at home for a long time. Unused and unopened: 6 pieces Bonus: 1 piece (body only) 【Size】 Installable gap dimensions: 28-45mm 【Condition】 Although unused, the packaging has scratches and damage due to storage. Please consider purchasing only if you understand this.