Pina Zangaro Machina Aluminum 3-Ring Binder, 1-Inch Capacity (36301) Attention-getting design, practical functionality Lightweight at just 19 ounces Capacity: 1, or 175 sheets (20 lb paper); Exterior dimensions: 11.8 x 10.2 x 1.5 inches Made in the USA of scratch-and-dent-resistant .040 recycled anodized aluminum By Pina Zangaro, leader in document presentation and archiving solutions since 1989