"Anodised Aluminium Chains are used to make up this effective Fly / Insect Screen Door Curtain. High quality linked chains are designed for a standard door frame, will lift out of the box in one peice and fit easily onto the supplied ""L "" Shaped Screw Fittings. Not only are the Chains attractive they are ideal for keeping out unwanted pests from Kitchen, Work or Home areas. They are very durable and will wipe clean when needed. Chain links can be easily removed for shorter drops if required Anodised Aluminium means the Chains are Durable, Colourfast & Rustproof Great for Both Commercial and Domestic Use Aluminium Header is Easy to fit, and lifts on and off with ease For Wider Doorways (ie Patio Doors) Hang 2 or more together."