The crank type is suitable for use in water baths, etc. Material: Alloy (tip vinyl coating); Tightening range: 0 - 1.0 inches (0 - 25 mm); Model number: Crank type / extremely small; Crank type size: A x B x C x D): 5.3 x 2.8 x 3.2 x 0.4 inches (135 x 70 x 82 x 10 mm)