These polymer clay molds are not flexible.
Approximate Measurements are -
Size: 40.22 mm = 1 37/64 inch
Thickness: 2.80 mm
Sellers Tip: Just dust mold with baby powder or corn starch (optional) add clay then press clay down, gently lift clay up from our molds, place on a cutting mat and trim the areas of the clay. Clay item that comes for our molds may be even enhanced by adding more clay to the finish piece etc.