Commercial-Grade Climbing Equipment for Larger Dogs The PRO Series Ramp gives dogs a commercial-grade climbing and crossing element for daycare, boarding, park, and enrichment layouts. It is made in the USA with smooth, easy-clean polyethylene and is built for daily facility use. PRO Series pieces are designed for dogs over 25 lbs and can stand alone or connect into larger playground layouts using black Bone Connectors that sit underneath the equipment, mostly hidden from dogs while staying easy for staff to reset Colors Standard Colors: Red Yellow Blue Green Special Order colors (add $20 Per Piece): Pink Purple Lime Orange Brown Tan Black Teal Features Pro Tunnel Connects on all Four Sides This allows you to create endless possibilities in your play areas! Tapered Corners and Edges All corners have been tapered off, that way there are less places for a dog's mouth to fit well - therefore less chewing! Molded-In Features Our Pro Series components have molded-in hand holds on the under side of the equipment so the pieces are easier to move and lift than ever. On the sides of the equipment you'll find threaded inserts, for accessories such as our Shade Receiver (See Accessories Tab) and much more in the future. The Pro Series also has on board storage for your Bone Connectors underneath the equipment so you never lose them!