These boxes are made from extremely tough, impact resistant plastic with stainless steel hinges and magnetic closure which helps reduce water ingress, keeping carefully tied rigs as dry as possible. To finish the hook boxes there is a clever clear sliding panel located on the top where a sticker (provided) can be placed for quick and easy identification, this is a huge help for anybody who keeps multiple hook boxes together. Short - store 3, 4 5 & 6 inch hooklengths in up to 10 different hook pattern/line diameter combinations. Long - store 6, 8 10 & 12 inch hooklengths in up to 10 different hook pattern/line diameter combinations