Olfa RSKB-2/50B Rounded Tip Safety Knife Blades, 50 Blades/Pk Heavy Duty Rotary Cutter Gray color is aesthetically pleasing

Gray color is aesthetically pleasing in any environment

and reference 7

Rotary guard cover the blade throughout the entire cutting process

Part #: XD21-404

Olfa 45mm HD  Rotary Cutter features features a durable handle with a blade cover for safety

Olfa RSKB-2/50B Rounded Tip Safety Knife Blades, 50 Blades/Pk Heavy Duty Rotary Cutter Gray color is aesthetically pleasingOlfa Rounded Tip Safety Knife Blades, 50 Blades Pk (RSKB 2 50B) Olfa Safety knife replacement blade (RSKB 2 50B) features rounded corners to help reduce injuries in the workplace. Blades manufactured using OLFA multi step production process for superior sharpness and blade retention. For Retractable Safety Knife (SK 4), Flex Guard Safety Knife (SK 6), and Retractable Auto Lock Utility Knife (UTC 1). Each blade features 2 cutting edges. 50 blades per