This 22 in. trowel features an aircraft-grade extruded aluminum alloy shell with exceptional overall rigidity, ensuring no bending or deformation during use and allowing for precise control of wall putty, plaster, and various mixtures. The blade is made of 0.34mm 301 stainless steel paired with a full-metal inner core, striking a perfect balance between strength and moderate flexibility to effortlessly achieve smooth wall finishing. Boasting a precision rounded-edge design, this trowel drastically reduces joint marks during large-area construction compared to straight-edge alternatives. It also enables more uniform release of mixtures, creating a flat and smooth finished surface. Equipped with an ergonomic handle, it ensures a comfortable grip that alleviates wrist fatigue during operation. The aluminum alloy construction balances lightweight portability with structural stability, delivering a non-slip and easy-to-control user experience. Composite material end caps at both ends of the trowel prevent mixture infiltration. Cleaning is a breeze, simply rinse it directly under water. With its durable build, this trowel is ideal for large-scale wall and textured surface construction work.