Purple Leaf : Mastering the Art of Outdoor Furniture, Crafting Your Perfect Outdoor Heaven~~ Compatible Weighted Bases: 【10'x10'】: 42721695 【11'x11'】: 41400712 【12'x12'】: 41858137 【 9'x12'】: 41400712 【10'x13'】: 41858137 Buy together, save more!