Our 450-pound concrete blocks are made to hold tents and inflatables in place during normal use and are not intended to hold them down during storms or wind over 20 mph. Mother Nature can take out Trees, Buildings, and Ships but securing tents and inflatables is a big part of safety.

Block and Roll invented some really cool 350-pound square blocks for securing tents but they are 20" x 20" x 12" tall and the 500-pound block and roll are 20" x 20" x 16.5" tall

Our Blocks are 450 pounds each, 18" in diameter, and 20" tall making them look much nicer and giving you more space under the tent. Compare the square blocks to our round blocks in the pictures for a better idea