Economical Design Offers Cost Savings And Secure Containment. L-shaped aluminum brackets provide sturdy sidewall support. Easy assembly - Brackets are quickly and easily inserted into sleeves spaced around perimeter of Berm. No frames, components or excess material outside of sidewalls - excellent for use inside storage sheds and other buildings or structures where floor space is a premium. Meets SPCC and EPA Container Storage Regulations 40 CFR 264.175. Compact shipping and storage - with frames removed, Berm requires very little space (10' x 10' unit shown).