American Classic Series, Brushed Nickel finish 180 Degree glass to glass shower door hinge. Solid Brass construction with all moving parts (pins and springs) in precision machined stainless steel. These square edge shower door hinges are self-centering when within 15 degrees of closed position. 90 Degree in and out swing. For use with 3/8" - 1/2" Tempered Safety Glass. Rated for 40 Pounds per hinge. Open/Close tested to at least 50,000 cycles. Requires standard Mouse Ear glass cutout. 3 Year Warranty. Glass clamp plate size 2-1/8" x 3-1/2" - 2-1/8" x 3-1/2".