Lisa Pavelka Texture Sheets are made of high quality rubber material and are heat resistant and durable. The stamps are extra deep to give highly detailed beautiful results for both dimensional design and surface imprinting. The stamps work great with polymer clay, metal clay, paper, fabrics, wood, glass and more. These stamps are perfect for using with polymer clay applications like: Textile Effect, Mica Shift, Sutton Slice, Patterned Faux Dichroic and much more. Each stamp has a large surface area, measuring approximately 140x105mm (5½ x 4¼ inches), and is unmounted for optimal usability.