100Lb.  Geomet Galvanized Steel Base Plate Weight by Shademaker 

Available Sizes : 100 Lb 

Available in two finishes

Item No: SBGC100SQ

Size: 26" x .6"Thicknes

Use multiple plates to stack as recommended by umbrella Specification.

 for ATLAS, ASTRAL, SOLARIS, POLARIS, ORION Shademaker Umbrellas.