HARELINE 18.5” Magnum Spool & Tool Foamanizer Module - Includes 3 Foamanizer Sections, 16 Spacers, 12 Long and 6 Medium Acrylic Rods. Place spacers on 2 long and 6 medium rods. Insert into marked holes on the bottom layer and slide down middle layer. Slide down and press in the Top Layer and load up with tools and thread.