Features: This gap blocker is easy to use and requires no tools. Simply attach the panel and secure it with the included clips. The panel can be reconfigured to fit different spaces. These sofa blocks provide enough sealing around sofas or beds. You can easily remove them and wipe them with a soft cloth. Furthermore, they are stackable, so when not in use, you can store them together without taking up much space. Specifications: Material: metal Color: white Size: about 20 x 40 cm (7.8 x 16 inches) Package includes: 12 x Under couch blocker Notes: Manual measurement, please allow slight errors on size. The color may exist a slight difference due to different screen displays