Marvin pole saw heads have set the standard for pole pruning since 1943. The U2 is known as a universal saw head, because is accepts a wide variety of pole saw blades. Pole saw blades are easily attached with a wing nut and can be adjusted to several different cutting angles with the aid of the fixed locator pin. The U2 saw head has a cast aluminum body with a steel hook plate attached by rivets. The large steel hook helps pull hanging limbs. The U2 will attach to any 1-1/4" fiberglass pole and comes with attachment hardware. This pole saw head comes complete with a quick change adapter, so you can snap into any 1-1/4" female pole ferrule. Saw blades sold separately.