The kit comes with 4 sizes of notebook cover molds and 2 bookmark molds - suitable for A4 to A7 size , catering to different preferences and needs. Also, there are 28pcs loose leaf binder rings in various sizes and color options to secure your custom-made pages. Our DIY Resin Casting Kit prioritizes quality. It's flexible, , 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, the molds with or soapy water, but avoid abrasive pads. Careful storage in a cool, dry place away from sunlight 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 application on molds; instead, use a space heater or heat lamp to help 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.