Vertical Round Column Soap Molds with Rubber Caps - Each kit will come with 2 each. The width is 3" Pick your size 8" 10.5", 12" Vertical Column Mold. These do not leak, and the pipe has a high melting point of 260 degrees Fahrenheit. Great for Cold process oven process.   You will need a flat screwdriver to loosen the hose clamp.  Press the cap on the mold and tighten.  No liner is needed, but removing the soap from the mold without water discount, and gelling may be difficult.  Also leave ¾” from the top of the mold unfilled.  Once your batch is set up, loosen the hose clamp and pull off the cap.  Place inside the freezer about 1 hour and pop your soap out. You can slam your mold onto a hard service to break loose. Slam the end of the mold with the ¾” unfilled end.  This allows the soap to move.  The mold will break if too much force is used. Use a hard service with padding.  Many soap techniques can be done with these molds.  Pull through, Lollipop, Ying and Yang, Funnel pour, and so many more.  When bars are cut 1" thick, they make a perfect fully cured bar of 4oz.