The idea was to manufacture a protector without using steel, which was used by all other manufacturers for product stability, but instead use a patented system for stability in larger sizes. Exquip protectors are completely environmentaly friendly, the material used is neutral.Exquip will take back all our used protectors, please contact us for further information. All damaged protectors are milled and this material is used in the manufacturing process. Exquip have Manufacturing/Refurbishing bases in Hamm Germany, Montrose UK , Houston Tx with storage facilities in Singapore.