Blocks fit together to make curves, circle or straight lines. 13.75" x 11" x 8" high. They make a terrific pond -- dig a straight-sided hole, line with plastic and set blocks around. Add fish and plants. Straight sides make it raccoon-proof. Heron-proof because the birds will not step up and over into the water.
Nineteen blocks. Will sell two lots -- nine and ten. This large size block is no longer available. $5 each