Crown Shade Black Plastic Weight PlateThe weight plates help stabilize your instant canopy pop up tent in the desired location. Works with most instant canopy legs and can be slid around each leg. Works on most surfaces and terrain and won't stain the surface based on the construction material surrounding the weight. Weights keep canopy stable Avoids shifting and stability wiht 20lbs (5lbs per weight plate) Prevents wind damage to your canopy Universal fit with most canopies Square design