For glass-to-glass 90 degree return applications. CRL Glass-to-Glass 90 Degree Return Hinges are made of forged brass construction with a screw attachment feature. Clear vinyl pad inserts protect glass. Requires 1/2" (12 mm) holes in glass for mounting. Polished brass with lacquered finish or chrome plated. The maximum recommended door width is 16" (406 mm). Maximum weight should not exceed 20 lbs. (9.1 kg). Two per pack.