High Quality Material: The jewelry making kits model is made of food grade silicone. Light weight and durable, reusable, easy to use and clean . Multifunctional tools: these resin casting molds function as multifunctional tools are good for making DIY projects, earring pendants, necklaces and beautiful jewelry pieces. Easy to apply: the soft silicone jewelry molds are flexible and design with holes, which helps you easily get your beads out from the molds. Kindly note: please clean the jewelry casting molds and make sure they have not any dust before applying, so that you can get better crafts. Size Chart: Square L: 2.1x2.1x1.8cm / 0.86x0.86x0.70inch Square M: 1.7x1.7x1.4cm / 0.66x0.66x0.55inch Square S: 1.4x1.4x1.2cm / 0.55x0.55x0.47inch Round L: 2.1x1.9cm / 0.82x0.74inch Round M: 1.7x1.5cm / 0.66x0.59inch Round S: 1.4x1.1cm / 0.55x0.43inch Package Includes: 1 Piece Resin Molds for Jewelry Note: Please allow 1-3mm measuring deviation due to manual measurement. Due to the different monitor and light effect,the actual color of the item might be slightly different from the color showed on the pictures.Thank you!