Roller Blinds Operating System: Chain Lift Mechanism: A smart operating mechanism that facilitates easy lift of the blinds The side-located chain system allows users to easily raise, lower, and halt the blinds at any desired height Material: This blind has been made from our robust polyester material and is water-resistant & wipe proof. Pleated Fabric: Light Transmissions: 100% Block Out. Coated polyester fabric. Top Channel: Aluminum 40mm (+/- 1mm) Bottom Channel: Powder coated aluminum