MATERIAL - Silicone resin molds,flexible and durable,smooth. Easy to use and clean. Screw eye pins are made of metal alloy, stirrers, droppers and spoons are made of quality plastic, hand twist drill is made of stainless steel.SIZE - Pendant molds are 1.95 inches high with diameters from 0.35 inch to 0.4 inch, 3 sets casting molds have 70 designs with 4.4 inches to 6 inches long and 2.7 inches to 4.9 inches wide; Inner diameter of bracelet mold is 2.4 inches.WIDE APPICATION - Can be applied to diy different handiwork and jewelry, such as key chain, earrings, necklaces, pendant, bracelets and more, with many operating tools, help you make them more easily.