The Model 100 M&P Handcuffs from Smith & Wesson feature an innovative, patented double-locking system that makes them easier to use compared to standard models. The double-lock is finger-activated and does not require keys or other tools. This allows officers to employ both hands when needing to control a suspect. The keyless design also allows easier use with wet or gloved hands. The cuffs feature heat-treated internal lockworks and smooth ratchets to deliver rapid, reliable cuffing. The high-quality carbon steel has a matte black Melonite finish that is highly durable, reduces reflection and resists scratching from daily wear.