Features: Package information: there are 4 pieces pen shape resin molds totally in our package, which can satisfy your various DIY making needs. Durable to use: this epoxy casting molds are made of silicone, have smooth surface and durable to use, the flexible design is not easy to tear or break. Convenient to operate: first put the refill into the resin mold, then pour resin into mold, you can also add some cute items and colorful pigment according to your preference. Enjoy your DIY time: with these fountain pen silicone molds, you can make kinds of pens by yourself, use your own imagination, get a beautiful and personalized pen appearance. Thoughtful gift choice: when you finished the whole process, you can prepare the cylinder epoxy molds for your family members, friends, classmates, colleagues, relatives, teachers as delicate gifts. Specifications: Material: Silicone Size: 145x13mm/ 5.7 x 0.51 inches, 142x 13mm/ 5.59 x 0.51 inches and 143 x 13 mm/ 5.62x 0.51 inches Color: Transparent Styles: 3 different styles Package Includes: A, B, C (4pcs Mold) D Brass Core E12 Bottle of Ink (7ml) note: Pointed parts included, please keep the refill pens away from little kids. Silicone casting molds only, no resin materials included. Please allow slight size error due to manual measurement. Please avoid the heat and pointed tool.