Material: mould is made of silicone which is flexible, resistant to tearing, durable. Size: Different outer and inner diameter and clock core diameter: 0.8 cm. Easy to release, the resin is clear and shinny comes out of the mold. Easy to the de-mould: These silicone moulds are with smooth and shiny interiors, reducing the need to cut back and polish finished resin items. It will be easy pop out. Widely Application: It's perfect for using it with resin, you can add beads, rhinestones, sequins, colors, dried flower, pictures or anything you like. Completely clean inside before use. // window.dataLayer = window.dataLayer || []; function gtag(){dataLayer.push(arguments);} gtag('js', new Date()); gtag('config', 'UA-172919674-1'); // ]]>