Key benefits - Adjustable self-tightening mechanism: Ensures a secure hold and eliminates the need for multiple wrenches. Provides comfort and reduces hand fatigue during extended use. - Double-ended design: Offers two different sizes for versatility (8 mm to 22 mm). Delivers better control and safety when working with robust fasteners. - Universal fit: Works with various nuts, screws and fasteners, making it ideal for repairs at home, in the car, and on devices. Designed to reach tight or hard-to-reach spaces, making it a versatile tool for difficult jobs. - Durable construction: Made from high-quality materials for long life. Built to withstand the elements to ensure long service life. Specifications and compatibility - Size range: 8 mm to 22 mm on the two ends for versatile fastener compatibility. - Material: High-quality materials chosen for durability and longevity. Use scenarios - Home repairs and furniture maintenance: Ideal for tightening or loosening fasteners in confined spaces without switching tools. - Automotive work: Useful for working on undersides, engine bays, or other tight areas where access is restricted. - Appliance and device servicing: Suitable for repairs and maintenance on equipment with limited clearance or hard-to-reach fasteners.