This Stanley® Retractable Knife has a durable plastic construction that is both lightweight and durable. The blade retracts into the handle for safety and can be changed easily, with no tools required, when necessary. The fine adjustment allows 5 different blade positions for precision cutting. Antishock resistant ABS body both lightweight and extremely strong. Fine adjustment allows 5 blade positions. No tools required to change the blade for quicker blade change. Blade Length: 150mm. Safety Warning: Stanley® Knives have sharp edges, when in use, children/students must be supervised accordingly. Age restricted item, please contact our Customer Service Team to complete your purchase.