Faber-Castell's Jumbo Broadline Markers have 12 bright, vibrant inks that are made from food-grade dyes. Markers have long-lasting, water-based ink, which allows them to be rehydrated by dipping the tip in water. The 20mm extra thick, durable nibs sustain heavy pressure when coloring. The ventilated safety cap prevents choking. Faber-Castell's jumbo markers for kids are non-toxic, acid-free, and conform to ASTM D-4236. Great for school or at-home coloring and art creation!