Garage Door Mailbag for Non-Wood Garage Doors 60% Cotton and 40% Polyester Collects and Holds Mail from a Mail Slot. Fits on All Horizontal Mail Slots Especially Designed for Garage Door Mail Slots - Holds Mail In the Mailbag No Matter What Position the Garage Door is In. Can Be Used on All Types of Garage Doors, Wood and Non-Wood. Durable, Washable, Light Weight, Portable Product. Keeps Your Mail Safe and Secure. Eliminates Your Mail Falling on the Floor or Your Pet Getting to Your Mail Before You Do. Mailbag is Very Easy to Install and is Shipped Preassembled.