The Marshalltown 11in. x 4 1/2in. Drywall Trowel made of high carbon steel and is also flexible, tempered, ground and polished for unmatched strength and durability, resulting in the longevity professionals expect. The blade is fastened to the mounting with hardened stainless steel rivets and the Diamond Shank design keeps the handle from twisting. The comfortable and durable DuraSoft® handle minimizes fatigue and offers excellent strength, resulting in increased productivity of the user. Made in U.S.A.