1 MODE : 79721 ER Attach the Upper Pipes and the Lower Pipes together, then fix the Felt Stickers to the bottom of the Lower Pipes. Use the diagram below as reference and be mindful of the direction the pipes are facing . [2 | Install U-Shaped Pipe, Rack Pipe and Hanger Rod on the rack assembly from Step 1. EX Install Mesh Shelf to Rack Pipe and U-Shaped Pipe. Use the diagram below as reference and be mindful of the direction of Mesh Shelf.