Aluminum Alloy Track: Commercial heavy duty curtain guide rail is made of high quality aluminum alloy, weather resistant and with strong load bearing capacity. Lasting Shine: our curtain track antioxidant surface treatment does not lose color or fade, electrophoretic spraying process for deep protection; five colors are available. Double Layer Noise Reduction: home curtain double track using thickened PVC mute strip wrapped on all sides built-in mute tape can effectively reduce the sliding sound, giving you a smoother, more comfortable experience. Easy To Install: The ceiling mounted one-piece double track comes with all the accessories used for ceiling mounting (required curtain rail, 2 seals, 16 pulleys per meter configuration and matching screws), direct hole punching for top mounting, portable installation. Dedicated Connectors: curtain double rail logistics and transportation size limitations rail will be cut into multiple 1M in order to transport special connectors to connect the two rails are very strong and firm.