Brook Fishing Equipment, Fly Box with Silicone Inserts, Out Performs Foam, Possibly The Best Modern Technology in Fly Boxes, Available in Slit & Non-Slit Styles MODERN TECHNOLOGY - Features silicone inserts, easily outperforms and outlasts all foam inserts SLIT VERSES NON-SLIT - Slit, place the bend of the hook inside the slit, simply push down and your fly will be secure, Non-Slit works like foam, simply push the hook into the silicone for a secure fit SILICONE INSERTS - Will not tear or bore out like standard foam fly boxes, keeps barbed and barbless flies securely in place and does not hold water preventing hooks from rusting IMPACT RESISTANT - ABS blended plastic outer shell, impact resistant and can take falls on hard surfaces with stainless steel hinge pin, will not rust and is ideal for saltwater use IT FLOATS - Boxes will float if dropped in water, holds 208 flies; simply line the flies up with the small bumps, either push hook down or insert for a secure fit. Box Dimensions 6  x 5 x 1  x  inside depth with easy lift locking tab