You will receive a Christmas card as a gift for Christmas Day. The security lock window restrictor is designed to limit the opening distance of windows and doors to help reduce the risk of injury from falls. Suitable for most casement, wooden, PVC, aluminum, and sliding windows, including horizontal and vertical types. Safe solution to prevent children from pinching their hands when opening or closing windows and doors without supervision. Helps prevent babies and children from accidentally falling out of windows or exiting through doors. Also effective for protecting pets. Adjustable window restrictors allow ventilation while keeping children and pets safe. Offers two opening size options: 5.12 inches (13 cm) and 6.30 inches (16 cm). Easily switch the circular knob and adjust the spacing to desired settings. These window limiter locks come with strong adhesive for secure attachment without drilling. Simply peel off the protective film and apply directly to windows or doors. Optimal adhesion is achieved after 24 hours. Easy to remove using a hair dryer without damaging the window surface. Note: Due to lighting and screen setting differences, the item's color may vary slightly from images. Slight dimensional variations may occur due to manual measurement.