Best gift for children and adults: these SAKEYR liquid chalk markers can be used on all non-porous surfaces, including boards, glass, contact paper, stickers, whiteboards, plastic, metal, menu boards, car windows, high-gloss boards, mirrors and much more. Reversible round and chisel tip: each liquid chalk marker comes with a switchable 6 mm round and chisel tip that makes writing letters, lines, graphics or shadows easier. Durable fibre tip can be used longer and works great on all non-porous surfaces including blackboard signs, whiteboards, LED writing boards, car windows, mirrors, stickers, plastic or metal and more. 12 bright colours: Chalk marker set has 12 different colours, including white, black, red, blue, green, brown, purple, yellow, orange, pink and metallic gold and silver. The vibrant colours are clearly visible from a long distance, perfect for window markings, signs, teaching materials and office supplies. Wet wipe and non-toxic: these erasable chalk markers are water-based ink, non-toxic, low odour and safe for children. It complies strictly with EN71 safety standards. Whether you are a teacher, student, artist, adults or children, these are the chalkboard markers you are looking for. You can remove your wipe-clean chalk markers completely and easily with a damp paper or damp cloth without smearing or leaving streaks.