4-Piece outdoor umbrella base set brings the perfect combination of quality and practicality. Designed with a U-lock shape, this set of bases easily secures the Market Umbrella to ensure it stays solid in outdoor environments. The base can hold up to 176 lbs. of water or 132 lbs. of sand, making it more stable and reliable. The square design of this base is not only aesthetically pleasing, but it also matches a variety of outdoor decor styles. Whether it's on your patio, balcony or garden, it provides reliable shade support for your outdoor recreation area. It is suitable for all kinds of outdoor activities, bringing you a cool and comfortable outdoor experience. Color: Chunks of Black. Material: Plastic.