Stone Master Mold's Limestone corner molds are designed to complement the matching Limestone flat stone molds. Limestone is a traditional, grouted stone with natural cut edges in lengths of 4.5″ to 15.5″ and widths of 2″ to 8″. The finished product/stone is approximately 1-1.75" thick. Each mold makes approximately 1.75 linear feet with a grout joint. Stone Master's rubber molds are made from plastisol, which requires no release agent and will last for hundreds of pours. This mold includes recycled plastisol. Made in the USA, both materials and labor. Available in 3 unique version, with no stone repeats. A corner plug (sold separately) can be used for 1-step corners. 1-step corners allow you to pour the corners in one step: Pour the long, horizontal end first, place the plug on the mold, then fill the open, short end and lightly vibrate. Limestone flat molds are also available.