Daiwa Semi-hard Spool Cover AThe main body is made of PP board to absorb external shocks. The inside of the main body is made of cushioned fabric to prevent scratches on the reel. Mesh fabric is used for the hinge to prevent internal humidity. Comes with a loop for attaching a carabiner, etc. Use it as a knob to make it easier to open. The double type comes with a separator to prevent the spools from colliding with each other. Single type Single type that allows you to store the