Features: This sliding door seal effectively absorbs the vibration of the door gap, reduces external noise, and provides a quiet environment for offices and commercial area. This weather stripping for door has a built-in elastic memory structure, which can automatically adjust the fit as the door gap deforms slightly. It will not loosen after long-term use and maintain a good sealing effect for a long time. Material: aluminum alloy, plastic Color: silver, black Size: 42 x 1/2 x 9/32 inches/ 106.68 x 1.27 x 0.71 cm Package includes: 4 Packs commercial door weatherstripping Notes: Manual measurement, please allow slight errors on size. The color may exist a slight difference due to different screen displays.