This is a Triangle shaped acrylic loaf soap mold with an acrylic lid by Custom Craft Tools that I purchased for $109.55. The dimensions according to their website is 3.5" on all three sides and 9" in length. I believe I used ~ 16 ounces of oils. This mold allows you to make 9 - 1" thick bars. Because there is no silicone liner, you will need a soap recipe that makes a harder bar in order to remove the sides cleanly. You can also use this mold either standing up or laying flat.