Sitar Main Bridge (Item Code: STMB) Replacement main bridge for full size sitar. Each cattle-bone bridge will vary in size. Natural cattle-bone, expect irregularities. Each replacement foot of the bridge will need to be fitted (sanded) to fit the Sitar. Also no grooves are pre-cut in the cattle-bone top. They are about 3 inches long by 1 3/8 inches wide and 1 1/4 inches tall