Vertical Round Column Soap Molds with Rubber Caps - Each kit will come with 2 each. The width is 3" Pick your size 8.5" 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 screwdrive to loosen the hose glamp.  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.  Free Domestic shipping in the US.  International Shipping for flat rate runs between $50-60. Please contact me for a quote, before purchasing if you are not in the United states.
8.5" ( 21.59 cm ) Each 8.5” mold holds 24 oz of oil
10.5” ( 26.67 cm )  Each 10.5” mold holds 29 oz of oil
12” ( 30.48 cm ) Each 12” mold holds 33 oz of oil. 
RECIPES
Basic. 20 Coconut, oil 40 Lard, 40 olive oilHere is my recipe. 20 Coconut, 15 Lard, 10 Cocoa, 5 Shea, 37 Olive, 8 Sunflower, 5 Caster. Using 1 teaspoon Sodium Lactate per lb. 5% Super Fat and 25-29% Water. I soap at 90 Degrees Fahrenheit. 
MOLD VOLUME
Figuring out you Volume for your mold.Pi (3.14) x Radius x Radius x Length x .4 = OZ. SO, in a 3" PVC mold the Radius is 1.5"If you use lbs. in Soap calc. Take your oz. and divide by 16. 16oz in a lb. So, let us say my mold is 13" tall. Here is the mathPI (3.14) x 1.5 x1.5 x 13 x.4 = 36.738oz. Want lbs. 36.738/16 = 2.296lbs. Round up or under.
GELLING YOUR MOLD
After you pour you need to gel. If you did not line your mold, gel, or water discount you will have to wait days to unmold.This is the key of getting the loaf out of the tube. If your mold will fit in your oven upright, use it. Put oven to 170, put plastic wrap over the top and shut off, Don’t over heat in oven, I like to use buckets with heating pads. I place my mold inside, turn on heating pad and cover with another bucket. I watch for gel and do not let it get to hot or you will get tunnels.
REMOVING FROM A PVC MOLD
Once cooled, you can place inside the if freezer it will not break loose. 1 hour. I drop the mold on a hard surface to break loose. If it is still stuck but moves some, I use soup can push inside MOLD to pop it out. If soap it is still frozen, wait for it to thaw before you cut.