Check the listing for details. Rubber Mold for Concrete or Plaster, EZ Stack Flats. Condition: New. Listed at 132.95 USD. Professional grade rubber mold that will last for hundreds of pours, created from natural stone to reproduce the natural stone's finest detailsMade in the USA from plastisol rubber, including recycled plastisolNo release agent necessary, saving you money, time, and clean up, as well as easy, clean release of face color pigments, unlike plastic moldsEZ Stack stones are made in 3 widths for easy installation, with unique stones in each of the 5 versions available for purchase, no stone repeatsMatching EZ Stack corner molds are also available Stone Master Mold's rubber stone mold in EZ Stack is ideal for making your own veneer stone for any indoor/outdoor project where stone cladding is needed. EZ Stack stone comes in 3 widths of 4.5", 3", 1.5" for quick and easy installation. The finished product/stone is approximately 1-1.75" thick. Each mold is approximately 22.75" in length by 20.5" wide by 2.25" deep and makes approximately 2.4 square feet drystacked or 2.9 square 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. Matching EZ Stack corner molds are also available.