3 folding hex wrench sets (Allen) for tightening or loosening screws; includes 9 SAE sizes, 8 metric sizes, and 8 star sizes. Folding design for easy storage and portability Broad compatibility with common fasteners across a range of tasks Two to three practical use scenarios - Bicycle maintenance and repair: use the appropriate hex or star size to adjust brake and derailleur bolts, crank bolts, and other small fasteners on a bike. - Flat-pack furniture assembly and home projects: quickly tighten or loosen hex bolts during assembly or minor repairs without searching for the right size. - Automotive quick repairs and service: access hex and star fasteners in tight spaces during routine maintenance or minor fixes Key benefits and attributes - Function: versatile set of folding wrenches covering hex (Allen), metric, SAE, and star sizes to handle a variety of fasteners. - Compatibility: designed to accommodate standard sizes used in household, bicycle, furniture, and automotive applications. - Size coverage: 9 SAE sizes, 8 metric sizes, and 8 star sizes provide broad compatibility for many screws and bolts. - Storage and portability: folding wrenches collapse for compact storage and easy transport, reducing tool clutter and helping prevent loss.