Underhill Casting HDPE Vertical Mold System - Standard 18 Now you can make vertical casts like a pro! This is the original vertical casting system developed by John U. John has used this same system for over 10 years to make all of his famous vertical tube-in blanks and color casts. Now he has agreed to make it available to you! 18 Position All Delrin Rack (No sticking resin!) 36 Sierra Heat Resistant Tube-In Plugs 18 Delrin Bases 18 Retainers 18 Color Casting Plugs 9 - 12" (cut to suit) 7/8" Clear Casting Tubes Constructed from premium 1/4" thick nonstick Delrin Long Derin Rack Handle. Makes Removing the Rack a Snap! Economical! Replaceable Tubes & Plugs. See-Thru Design - Easy to Find Bubbles Color Casts - See Your Swirl / Embed Design! Professionally Used, & Designed Time Tested! Made in the USA Outside diameter: 6.75", Height: 8" For use with Alumilite, polyester, and most epoxy resins Con US shipping only, does not qualify for free shipping