IPEMA certified. Fabricated from 3.5 in. O.D. galvanized pipe with 2.88 in. O.D. and 2.38 in. O.D. pipe legs. Use zone: 19 ft. x 27 ft.. 96 in. L x 84 in. W x 180 in. H (220 lbs.). Assembly Instructions . Warranty . This is a version of the horizontal ladder with increased difficulty. It is an effective fitness device for building shoulder, biceps and handgrip strength. This product must be used as intended and with adult supervision. ShopLadder acts only as a sales agent for this product's manufacturer, and as such, had no involvement in its design or production, or instructions for use.