“Onward – 3″ Hinges – Black Square – 2pc per pack” refers to a specific type of hinge that is commonly used for doors or cabinets. Brand: Onward is the brand or manufacturer of the hinges. Size: The hinges are 3 inches in length, indicating the overall size of the hinge. Finish: The hinges have a black finish, giving them a sleek and modern appearance. Shape: The hinges have a square shape, which means that the corners of the hinge leaf or knuckle are square rather than rounded. Quantity: The hinges are sold in packs of 2 pieces.