MARSHALLTOWN The Premier Line MXS81D 18-Inch by 4-Inch Finishing Trowel with Curved DuraSoft Handle Highest grade hardened and tempered spring steel blade, properly shaped Aluminum alloy Xtralite mounting is lightweight but very strong Beveled work edges prevent surface aggregate popping Resilient DuraSoft handle provides a soft feel, reduces fatigue, and offers excellent durability U.S. Patent Nos. 5,522,111 and 5,713,096