This is a sliding window security lock, which is made of sturdy materials, will not be easily , and can serve you well. It can be easily installed on the sliding window, providing you with a safer accommodation environment. Ingenious design and good craftsmanship make it bring you a good experience. Features - Color: Black. - Material: PVC. - Size: About 7.50X5.50X3.00cm/2.95X2.16X1.18inch. - Manufactured from carefully selected materials, it is sturdy and will not be easily . - It can be easily installed on doors and windows, bringing you excellent anti-theft effect. - Effectively prevent children from opening doors and windows to avoid accidents. - Manufactured from great equipment and solidly constructed, you can with . - Use this window sash lock to replace old or broken window locks to maintain security in your home. Package list: 4 x Window Sash Locks 4 x Small Hooks 16 x Screws 8 x Expansion Tubes