Six large molded blocks & Four Small Blocks protect your swing set from moisture damage by providing a stable, moisture-proof platform for the legs. Moisture damage is the leading cause of wood failure in swing sets. Keeps your swing set looking better longer by reducing damage from weed whackers and lawn mowers. Less damage means less absorption of water and longer wood life. Gives your swing set a secure footing, so it won’t slip or slide on the ground. 14 inch ground stakes included to anchor your set firmly and prevent shifting. Makes your swing set safer and longer lasting.