Small 5.35 Inch x 3.38 Inch x 1.41 Inch. Holds 126 flies (63 Flies on each side). Fits in small pockets (Vests, Jeans, Shorts). 100% Waterproof - Silicone Seal that Keeps Your Flies Dry. Slit Foam - Slide the hook into the slit. 100% Floatable- Drop it in the water on accident? No Problem. The Fly Box Floats.