Both are brass plated. Shipped folded .  Bi-Fold Door Hinge  Sold by the each, not pairs.....unless otherwise stated  Home Page  Hardware Index Hinges Index Double Locking Bi-Fold Door Hinge  HS-8303L..See Price and Buy 2-1/2" Wide x 2-9/16" High x 1/8" Thick, for minimum stile width of 1-1/8" Countersunk for No. 6 screws not included.  The answer to bi-fold door problems! Automatically locks flat in the open position so door remains straight and can engage magnetic or friction catches. Shut when doors are folded to eliminate "bounce back" NOW with 4 positive stops. Locks at 0º, stops at 90º and 135º and locks again at 180º Dark brown powder coated finish on metal die-casting with nylon andd brass plated steel spring mechanism.