The Orvis Super Slim Vest Pocket Fly Box is available in two configurations to suit your needs. It can hold 120 flies with cut reference foam in eight rows of 15 slots or feature eight compartments with a magnetic base for secure storage. Its compact dimensions are 12.7 cm (L) x 9.8 cm (W) x 1.3 cm (D), making it easy to carry in a vest pocket.