The Marshalltown Professional Pool Trowels have hardened and tempered spring steel blades with short aluminum Xtra Lite, 6 rivet alloy mountings. These are light but very durable trowels design for pro's. High grade spring steel blades can bend to almost any radius, and the DuraSoft handle provides excellent grip, reduces fatigue while eliminating pressure points. The 8" x 3" has exposed rivets for to extend life of trowel when used with extreme radii. These trowels are made in the USA.