Montico Permanent Paint Markers Acrylic Marker Craft Paint Pens for Rocks, Wood, Metal, Ceramic, Glass, Canvas, Fabric Painting; Great Choice for Mug Customizing & DIY Project - Medium Tip Acrylic Marker Craft - With our rich, durable and easy-to-use paint markers you can make unique designs for yourself or give excellent not forgotten gifts to friends and family. Resistant Color - Thanks to the use of high-quality ink in the permanent marker set, your art design made on the surface of almost any material will look rich and bright for a long time. Diversity in Use - Paint markers are great for personalizing and decorating items made from various materials such as stone, metal, ceramic, glass, canvas, fabric, leather, plastic, wood, paper mache & etc. Safety for us is the most important - Glass paint markers are great for children over 3 years old, do not have the unpleasant odor, do not contain harmful chemical substances, are not toxic, approved by the FDA, do not cause allergies & Eco-friendly. Easy to Use - ink is easily applied with the help of color permanent markers on the surface (glass, ceramics, porcelain). In order to keep your art design for a long time, you can dry it for 12 hours in a natural way or bake in the oven for 25 minutes temperature 310 - 360 F.