Capacity 50 60 instruments. Dimensions: 26.67 x 33.65 x 4.45cm, 10.5 x 13.25 x 1.75 inches. Double layer accommodates twice the instruments as the single layer tray. Durable and lightweight with built-in protection against rust. Security locks ensure against accidental opening. Silicone matting/V-strips and bumper guards hold instruments in place. Sturdy, long wearing, riveted hinges.