silicone mold cube 4" Large with support shell.<br> The shell is needed for the ideal shape geometry of the finished product <p> Size: 10cm х 10cm х H10cm(4in х 4in х 4in) <br> Inner size: 8cm х 8cm х H9cm(3.1in х 3.1in х 3.5in) <br> Wall thickness: 1cm (0.4in) <p> Manufactured from highest quality silicone. The color of silicone may vary. <p>Suitable for use with concrete, plaster, resin, wax, clay, polymer clay, soap, candle.