Pina Zangaro - Frost - 3-Ring Binder - 2inch - 8.5x11 - Pina Zangaro Frost 3-Ring Binders add an element of style to any desktop or presentation. Frosted acrylic bound in soft black synthetic leather with nickel-plated hardware. This binder is 2 inches thick. Use Frost binders with standard 3-hole punched sheets, Polypropylene Express sheet protectors, Polyester 3-hole sheet protectors, or 8.5 or 11" Adhesive Hinge Strips.