This MS PIT Covers is a lightweight and heavy duty earth pit chamber comes with a special design. And also these MS PIT Covers has more capabilities when compared to generally used concrete pit. This MS PIT Covers has a lockable lid and has working area when compared with concrete pit. And MS PIT Covers is made with resistant materials and has terrific durability and their green top cap compeer the environment. These MS PIT Covers are UV and chemical resistant and available at similar as traditional concrete pit. This MS PIT Covers is made with high quality polymer and has terrific durability.