What it is A compact, portable tool set that includes a pen puller and a swivel winder designed for string-instrument maintenance. The pen puller speeds removal of small parts during restringing, and the swivel winder functions as an extraction tool and guitar winder. Key benefits — why you need it Faster string changes: the swivel winder accelerates winding and unwinding, cutting the time required to restring instruments. Easier pin removal and part extraction: the pen puller simplifies removing small components during maintenance or restringing. Portable and stage-ready: compact, easy-to-carry design makes it practical for home use, rehearsals, or live performances where quick repairs are needed. How it solves common problems Eliminates fiddly manual winding that wastes time and risks uneven tension. Reduces the difficulty of removing pins and small parts without tools, lowering the chance of damage or dropped components. Minimizes downtime between songs or sets by combining extraction and winding functions in one accessible toolset. Important attributes Function: pen puller for part extraction; swivel winder for winding/unwinding and general maintenance tasks. Compatibility: designed for use with string instruments, usable as a guitar winder and for related maintenance tasks. Size and portability: handheld, travel-friendly design for quick access at home, in the studio, or on stage. Performance: built to speed routine restringing and maintenance operations. Practical use scenarios On stage: replace a broken string quickly between sets to avoid interrupting a performance. At home or in the studio: restring guitars and perform routine maintenance with fewer tools and faster results. During rehearsals or travel: keep the tool on hand for rapid repairs to instruments that need immediate attention. Simple usage tips Use the pen puller to extract bridge pins or other small parts carefully, then switch to the swivel winder to remove or install strings efficiently. Keep the tool in your gig bag or toolkit for immediate access when a fast restring or minor repair is needed. A compact, practical toolset that streamlines string changes and basic maintenance for guitarists and other string-instrument players.