This Marshalltown 4 Piece Plastering Kit is designed for professional plasterers and DIY enthusiasts. It includes an 11 x 4 1/2" steel plastering trowel, an 8" blue steel taping knife, a 6" joint knife, and a small double-ended trowel and square. The trowel features a cast aluminum square mounting and a polished tempered blade. The taping knife has a flexible blade for smooth joints, and the joint knife is heat-treated and hardened for durability. The small trowel and square are hand-forged for intricate plastering work. Marshalltown tools are known for their durability and precision.