This instrument measures 6 5/8 inches long by 1 1/2 inches high and weighs 7 ounces. It contains convex, concave, flat, tipped and pointed surfaces, with all surfaces containing double beveled edges.
This instrument is 8 3/8 inches in length and 1 3/8 inches in height. It weighs 8 ounces. There is one large straight edge and one large convex edge with tips at each end, one slightly wider than the other.
This instrument is 8 inches long and 1 1/2 inches high. It weighs 7 ounces. There is one long convex edge, a straight edge and 2 concave edges as well as tips on either end with one slightly larger than the other.
This instrument is 7 3/4 inches in length and 1 7/8 inches in height. It weighs 6 ounces. There are 2 convex surfaces, one on the top and one on the bottom with 2 concave surfaces also on the bottom and top.