1. Narrow-space design: specifically built for work in tight plumbing spaces under sinks and behind toilets. Approximately 12 inches long, it engages nuts and fittings where standard wrenches struggle, making repairs in cramped bathrooms and kitchens notably easier. 2. Safe, non-slip grip: features an integrated grip with a mesh pattern for a solid hold. The textured surface stays under control with wet or greasy hands, and the treated plastic coating provides comfortable handling while helping prevent slips that could damage fixtures or cause injuries. 3. Dual-functionality: serves as both a specialized plumber key and a Blasenspiegel. The dual-function design saves toolbox space, enabling you to dismantle shelves or hang wall décor after plumbing tasks, eliminating the need for separate tools for different jobs. 4. Tool steel construction: built from tool steel for durable performance and repeated use with stubborn plumbing connections. Sized to fit standard pipe fittings, it maintains accuracy even after heavy professional use. Use scenarios: - Under-sink repairs or valve work in cramped spaces where a standard wrench cannot reach. - Behind toilets or in tight cabinet areas when loosening or tightening supply line nuts. - After plumbing tasks, use the dual-function design to organize your workspace by mounting a shelf or hanging wall décor.