Fits Any Outdoor Offset Patio Umbrella Stand square

Specification: Material: 900D Oxford cloth Color: Black Size after loading sand: 46 * 46 * 15cm/ 18 * 18 * 6 inch The hole diameter: 8 -9cm Weight: 350g Package List: 1 * Umbrella Basis Weight Bag (Sand and Shovel are not included) Product Description & Specifications: 1 . It is made from 900D military grade oxford cloth material and has enhanced side seams. Increased tear resistance. Waterproof and durable.2. You can put the weight sand or small stones into the bag with ease, because there is an opening on the side for easy loading, and the opening adopts  design, which is very convenient and can prevent leakage. Side straps with buckle closures help you attach the base counterweight bag umbrella.3. In stormy weather, this umbrella sandbag bag will be your best companion. It can protect you and your family from umbrella injuries..4. This parasol weight bag is very light and easy to carry. If you go to the beach to play, you can take them with you. You can easily fill it with a toy shovel for kids, then enjoy the fun of the sea.How to install:Put the bag on the umbrella base, place the bag around the umbrella pole , secure with  and buckle closure, and fill the weight bag with sand.