This is a set of 3 black "Window Locks" from DAISO, designed for use on sliding windows. Effective for home security, using two (top and bottom) enhances the security. Suitable for window frame sizes of 28-42mm. Although unused, please refrain from purchasing if you are overly concerned about storage conditions, as they have been stored at home. [Brand] DAISO [Product Name] Sash Auxiliary Lock Window Lock [Color] Black [Quantity] 3 [Size] Compatible with window frame sizes 28-42mm [Condition] Unused Thank you.