Fifteen Degree Arch Blocks
Our 15 Degree Arch Blocks have a 18 degree angle cut on each end, so 12 of them form a circle. These blocks are a refreshing addition to any block play area--and they help kids play at geometry and engineering.
Note: Building freestanding arches takes a bit of time, a bit of patience, and a bit of friction. On too-smooth surfaces the blocks will slip and the arch will crash. Try building on a dishtowel or blanket if you're arch attempts slip and slide.