NELA Premium SuperFLEX 13" X 4.3" Finishing Trowel is extra light, extra strong and extra durable. Blade is made from stainless spring steel for more flexibility and durability. NELA Premium SuperFLEX trowel features ergonomic BiKo CORK grip for comfort and performance. Versatile double-blade technology with slightly rounded edges is perfect for burr-free filling and finishing. Ultra-lightweight aluminum mounting is made from a robust special alloy for ultra-high stability and easy handling. High-strength bond between both blades withstands solvents and extreme temperatures.