Features: Material: Silicone. Silicone is flexible, withstand to tearing, durable in use, easy clean. Silicone mold make pencil holder, Help you place pen, pencil, Big Pen, Name card, jewelry container, desk organizer, For home decoration, office decor. Can be used with a wide range of resin materials, epoxy resin, rethane resin, resin, resin casting, soap for case or art craft projects. You can also put small objects into the transparent resin, like a dry flower, sea for shell, small stone, etc. After dry , if there some place are not smooth,you can use sandpaper or other tools to let them looks more beautiful. Exquisite gifts: Our resin pen holder molds are suitable as gifts for relatives and friends. They can exercise their hands-on ability and are a good gift. Specifications: Material: Silicone A:Approx.21x9x1.6cm/8.3x3.5x0.6inch B:Approx.20.8x4.8x1.1cm/8.2x1.9x0.4inch C:Approx.4.6x4.6x1.6cm/1.8x1.8x0.6inch D:Approx.7.5x3.4x0.8cm/3x1.3x0.3inch Package Includes: 4 Pieces/set Silicone Molds note: Please allow 1-2cm errors due to manual measurement,pls make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.