describe Adjustable window stopper, Latches, locking straps, ABS window stay with screws, Position limiter, Child safety protector Features: 100% brand new and high quality Is a child safety product, Can protect children Not to be arbitrarily Open the windows and climb. at the same time, It can control The size of the window opening, To prevent strong winds, At the same time maintain air circulation. Easy to install-including installation hardware. Window latch/window plug Keep the windows open for promotional items. Suitable for families, Hotels, schools, kindergartens, etc. color: White Contains: 1 set x window latch (with screws) important hint: Handle the edge to The size of the edge of the window sash Should be less than 14mm (If the installation standard is generally appropriate), If the size is too large, The buckle must be installed upside down