Trademark Innovations Resin Umbrella Base Weight for Offset Umbrella - 30lbs Each black powder coated plate weighs 30 lbs. and is made of resin so it won't rust Made to fit a cross bar base for an offset or cantilever patio umbrella A single 30 lbs. weight. Purchase 4 weights for a total of 120 lbs. of support Each weight measures 19"L x 26"W x 1.5" Thick By Trademark Innovations