Edge trimmer is 3" wide, 2-1/4" long, and 1" deep. Includes two replaceable single-bevel mat cutter blades. Additional replacement blades available. Trims Flush & CleanlyCuts in both directionsUses inexpensive replacable bladesCompact SizeIn development for over two years, Band-It trimmer is simple by design yet skillfully engineered. The result is a single-sided Edge trimmer that is compact and durable. It trims in both directions, end trims.