844.DSLS Retractable 40.5 to 44mm Safety SLS Height .  This safety knife has a stainless steel blade and an ergonomic soft ABS handle for comfort. This cutting tool features an automatically reloading snap-off blade, blade lock and a blade snapper that is built within the handle which can be easily used for safe blade removal. The handle can be gripped securely and can contain 2 spare blades.