Product Includes: You will receive 4 pieces of window security bars. Adjustable window security bars can be locked to improve home security. Sufficient quantity can fully meet your daily needs. Premium Material: These fixed window guards are made up of quality steel, stable and durable, not easy to bend and break. You can use them with confidence for a long time. In addition, the rubber feet at both ends protect your wall from scratches and firmly hold the pole in place. Suitable Size: The window security bars can be adjusted between 40-70cm/15.8-27.6inch to fit your open space. They measure about 13mm/0.52inch in diameter, and the non-slid rubber heads measure about 19mm/0.76 inch in diameter. Easy to Install: Just twist and pull the spring rod, adjusting it to be 3-5cm longer than the installation width, pushing the door safety rod to parallel, using the built-in spring to shrink and fix, and the installation can be completed in a few minutes. No drilling, and no damage to walls, doors or windows. Wide Application: The window security bars can be used as refrigerator rods, closet rods, shower rods, curtain rods, bookcase rods, cabinet rods, shoe racks, pantry rods, etc. Also suitable for bathrooms, bathtubs, dressing areas, showers, closets, windows and other occasions.