Great Material - It is made of ABS Foam material.With the advantages of light weight and quick drying etc,you will easy to carry. Lightweight Connenient - Great for storing fishing lines, snelled hooks, leaders and rigs. Use For - Wrapping your fishing hooks and leader on. Ideal for fly fishing, carp fishing. Wrapping The Hook Link - Spare spools for wrapping the hook link around it, you can use tippet holder to keep it. Great For - Boat Fishing / Ocean Rock Fishing / Ocean Beach Fishing / Lake / River / Reservoir Pond / Stream. Material: ABS Size: 19.5*10.5*3.5CM / 7.68*4.13*1.38Inches Compartments Quantity: 1 Light and small spool for easy carrying. Translucent brown ABS storage box with anti-skid surface, well-built and strong.. High density EVA spool,moderate hardness, durable and not damage line. Four magnets for better sealing. Spool Material: EVA Spool ColorRed Package Include:1 x 16pcs Foam Spool Box