Made of high grade plastic to resist breakage. Test have shown that this wedge outlast the competitors by not breaking when used in a "hammering" mode. The handle is longer than the competing brands and is ribbed for a better grip. The contour has a 90 degree corner so another wedge can be used against this corner for piggy back insertion into deep molds. also has a unique "textured" surface to allow a better grip for the user; even under wet conditions.