[Offer Safety to Children or Pets] Window restrictor hooks are designed to limit the opening of a window to 100mm, helping prevent children or pets from falling or running out, ensuring their safety. [Easy Installation] Requires only a screwdriver to fix the restrictor locks to the window; complete installation easily (includes screws and operation manual). [Durable 304 Stainless Steel] These window restrictors offer great corrosion resistance, high toughness, and rust protection, extending service life. [Reasonable Design] Can be released to allow full opening of the window. Automatically re-engages the restricted position when the window is closed, providing convenience in daily use. [4PCS Right Handed + 4PCS Left Handed] Pack includes 4 right-handed and 4 left-handed restrictors for added convenience. Ideal for use in homes, kindergartens, schools, and other settings requiring safety measures. Name: Window Restrictor Locks Quantity: 8 Pack Color: Silver Material: Stainless Steel Package Contents: 4 x Right Handed Window Restrictor Locks 4 x Left Handed Window Restrictor Locks 32 x Screws 8 x Safety Fixing Pins Note: Light and display differences may cause slight variations in color between the image and the actual item. Measurement error allowed is +/- 1-3cm.