Scientific Anglers - System X Interchangeable Insert - Standard-Green

System(tm) X Interchangeable Inserts. Designed to be used with System(tm) X waterproof fly boxes and can be stored in a System(tm) X foam insert suitcase. The tapered seal and soft rubber gasket assure a watertight closure around the entire perimeter of the System(tm) X shell. Two different sides for different hook sizes. Durable foam material holds hooks securely in place. Size: 4" x 6" x 0.5" (15cm x 10cm x 1.3cm). Color: Green.