Features:
DURABLE CONSTRUCTION: Made of rugged, weather-resistant HDPE plastic, with molded injections and UV-protection to prevent cracking and material degradation
VERSATILE BASE: Compatible with offset umbrellas equipped with a cross base up to 11 inches long, or conventional market umbrellas with a cross base
RETRACTABLE CARRYING HANDLES: After emptying the ballast, utilize the included carry handles to move the base from the patio to the lawn and more
LOCATION FLEXIBLE - By filling these weight plates and securing them on a cross base, which gives you the security and safety in any location you want. Perfect for garden, backyard, porch, poolside, patio, or commercial use.

Specifications:
Color: Black
Material: HDPE+ iron galvanized    
Product Size of Single Panel: 18.7(Radius)*2.8-3.1inch(H)
single base water Capacity: 13L
Single base sand capacity: 32.8lb

Warning: 1.Please read the instruction carefully before your installation.
               2.The base is heavy,so pay attention to the hands and feet during installation.