Handle type: smart-retracting, Ergo Pull™ slider reduces strain, Compatible blades: 10526, 10528, Finger-friendly edge stays sharp 11x longer, Reduces injuries, lowers costs, Non-sparking, non-conductive blade, Includes 1 dbl-sided rounded-tip safety blade, Ambidextrous design, Chemically inert blade never rusts, No-tool blade change, Fewer blade changes = fewer injuries. No PPE.