The quality of every Bouraw Acrylic Paint Pens has been checked before shipping. If you are not satisfied with the product, we promise we will give you a best solution. Please feel free to purchase.2-3mm Medium Tip & Clear BarrelMade from the finest, high-fiber material that allows for high absorption, the 2-3mm Medium Tip provides accurate flow control suitable for both fine detailing and filling large areas. And the transparent barrel shows you how much ink is left. This way, you and your family can effortlessly make their own things. With Medium Tip, you can easily fill in patterns on the stone.If you have Bouraw Acrylic Paint Pens, you can.....1. Make a special gift - Create a greeting card for your friends or family, pass your heart to your friends and loved ones. the Acrylic Paint Pens will make your greeting card more beautiful.2. Make life fun - Leave your creativity on small items that can be seen everywhere in your life, mark the flat objects on the cups, on the glass windows, on the whiteboard, and make life more interesting.3. Special way to celebrate the festival - Perfect for plastic eggs / Easter eggs, leaves, Halloween decorative pumpkins, Christmas cards. Just make the festival look bright and cheery!4. As a present - Each set comes with 12pcs Acrylic Paint Pens and a felt pen bag for your convenient storage. It can easily please your family and friend.5.DIY - Want to create a unique phone case? Want to make your own calendar card? Bouraw paint pens satisfy all your imagination.specificationMaterial: plastic shell + water-based inkSize: 1.3*14.2cmPackage Contents:12*Acrylic Paint Pens1* felt pen bag