Description: [Material]: Crafted from waterproof Oxford cloth, this sand bag base is designed to withstand various weather conditions, including winds, heavy rain, and sunlight, ensure long term performance [Enhanced Stability for Bird Deterrent]: Specifically designed for bird deterrent, the 5 pound weighted design ensures that your deterrent device remains securely in place even in windy conditions [Easy Installation Process]: Filling the bag with sand is a straightforward process that allows for quick and easy installation, making it convenient to set up whenever needed [Adjustable Weight Customization]: By controlling the amount of sand used to fill the bag, you can customize the weight to meet your specific requirements, providing flexibility for different applications [Compact Size for Versatile Use]: With dimensions of 30 cmx30 cmx5 cm/11.81 inchx11.81 inchx1.97 inch, this sand bag base is compact yet effective, making it suitable for a variety of outdoor settings where stability is required Specification: Material: Oxford Cloth Size Chart: 30cmx30cmx5cm/11.81inchx11.81inchx1.97inch Package Includes: 1 Sand Bag Boat Base Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.