Watch convenience: a doubleended tool design for quick spring bar removal and installation, enabling effortless strap swaps for DIY enthusiasts and hobbyists 2piece set: includes two longlasting metal tools with precise scales and detachable heads, providing a reliable solution for various watch band types and sizes Engineering and protection: crafted from sturdy metal with clear measurement markings and a Vgroove design that securely catches spring bars while avoiding damage to watch lugs Userfriendly mechanism: retractable fork ends allow simple insertion and pressing motions to release spring bars with controlled pressure, making strap changes a about a 1minute task Key attributes: metal construction, durable tools, precise scales, detachable heads, Vgroove catch, retractable forks, compatible with multiple watch band types and sizes Use scenarios At home: quickly switch between leather, metal, or NATO straps to match daily outfits or activities On the go: perform strap changes during travel or between events without tools or risk to lugs Versatile compatibility: suitable for a range of watch bands and lug configurations, including different widths and attachment styles