Patio cantilever umbrella base sand or water filled square umbrella stand with wheels and drag rod. With a large-sized water injection port and a water drain outlet, this umbrella base can ensure quick filling and drain. There are wheels at the bottom of this base weight can be easily lifted up and forward by using the drag rod, which can help you move effortlessly in any area of the backyard, garden and deck without scratching your floor. Dimensions: Compatible Patio Umbrellas Recommendation: ✅️Tips: