C&F slitted foam linings are ideal for holding all types of flies. Wedging the flies between the four micro-slits secures them at the bend of the hook, not at the point. Hackles are not crushed or damaged. Micro-slitsensure even spacing of flies. Holds up to 960 individual flies. 4 Micro-slit foam faces, each with 10 pockets for small flies Holds up to 960 individual flies. Weight: 216g