These thin fly boxes have secure waterproof latches, high density rubber seals. There are magnetic inserts in each of the 6 compartments in one box and top quality slit foam in the other. Perfect for dry flies or nymphs. Clear top with J. Stockard logo. Both are the perfect size to slide into your pocket and stay dry even if you drop them in the drink! 5.35 x 3.75 x 0.6 inches.