High-quality stainless steel blades for improved sharpness and durability. Each device features a retractable blade that activates like a click pen and retracts with a simple press of a button; this pen-style activation is intuitive because it uses existing muscle memory. Release button is positioned near the front of the scalpel where it can be pressed without looking or repositioning the hand. Allows for suture trimming when the blade is retracted.