We made these for the raffles at the 2017 National. The ends and dividers are made from shipping pallets. They hold a dozen insulators and each compartment is approx. 3.75" x 3.75" x 4.5" deep . The overall outer dimension is 19.5" x 14". They will hold most insulators CD 145 and smaller. Most CD 152s and 154s will also fit, but not every manufacture. Contact me and we can figure the most economical way to ship. They are just over 6 pounds each. Maybe more economical to ship two than one.