These flowers pens are composed of flowers and branches. The tulip flower parts will change color when these cute pens meet the sun, showing three bright colors - pink, purple and blue. The creative and novelty gel ink pen is sure to receive your favor Size and Material - The size of color changing tulip flower pens is 22 cm/8.66in. The diameter of the inner refill is 0.5mm in black ink. The pen holder and flower part are made of silicone, and the pen cap is made of plastic. Take off the pen cap and you can write comfortably with these flower pens Write Comfortably - Our fun pens for kids are comfortable to hold and easy to carry. The ink of color changing tulip pens is good, the writing is clear and smooth, the paper does not penetrate the ink and the refills are replaceable. These cute pens can be used to practice calligraphy, painting and signature, which is very convenient to use Beautiful and Practical - These flower pens bulk are both beautiful and practical. The unique flower shape is an ideal choice for decorating schools, classrooms, offices, etc. These novelty pens can help stimulate your interest and enrich your creativity. These fun pens can be given as a gift to any tulip lovers, children, friends and family, which will be a practical stationery Exquisite Gifts - These tulip gel ink pens are special gifts, enough to form a bouquet and be given to your mother, friends and teachers to express your concern as well as used as holiday party supplies, bags filler, office supplies, classroom kids rewards, family stationery, Mother's Day gifts, etc Color: Random Color (random colors, don't accept the specified color) Material: Silicone+Plastic Package Contents: 50 * Flower Pens