The kit comes with 4 sizes of notebook cover molds and 2 bookmark molds - suitable for A4 to A7 size notebooks, catering to different preferences and needs. Also, there are 28pcs loose leaf binder rings in various sizes and color options for you to secure your custom-made pages. Our DIY Resin Casting Kit prioritizes quality. It's flexible, durable, reusable, safe for both kids and adults, and compatible with most resins and casting materials. The molds are designed to ease the unmolding process, leaving a glossy finish on your resin pieces without the need for additional polishing. After each use, simply clean the molds with rubbing alcohol or soapy water, but avoid abrasive pads. Careful storage in a cool, dry place away from sunlight will ensure longevity of your molds. A practical and enjoyable tool for all DIY craft enthusiast. Always remember to follow safety guidelines while working with resin. Avoid direct torch or heat gun application on molds; instead, use a space heater or heat lamp to help cure the resin quickly. Material: Silica gel colour: As shown Package Contents: 4 notebook molds (A4 A5 A6 A7) 2 x gold 3 horizontal buckles 2 x silver 3 horizontal buckles 24 x single horizontal buckles 2 x bookmark molds (100/145mm) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.