SUPER WATERPROOF INSULATION - the outside spigot covers were made of heavyweight polyester pongee waterproof fabric and special PP insulated cotton, which possess the characteristic of good water proof and insulation to guard against severe weather in winter such as freezing rain and snow. UNIVERSAL DIMENSION - the faucet protector measures of 5.9 W x 7.7 H, and thickness of 1.4, works well with various faucet types, such as garden spigots, hose bibs, water tap, keep faucets protected in freezing weather. UNIQUE DESIGN - with this covering-wall clipping design, the great cover sock not only covers the faucet firmly, but also be great for against the wall closely. That means the snow/wind/water are isolated well and keep outdoor faucet insulated and waterproof. FLEXIBLE STRING TIE SYSTEM - come with string tie, you can extremely easy to install or take off from your faucet within a few seconds, much easier to use than some foam covers or hook loop tape styles.