• Official Aquadoodle pen, part of the best-selling water doodle range. • Easy grip with texture, lightweight for small hands to hold. • Reusable and durable, made with high-quality materials. • Fill it with water and start again for unlimited fun. • Let creative imagination run wild without paint. • Simply fill the pen with tap water and run the tip over an Aquadoodle water mat. • Colors appear on contact and fade when dry, ready to reuse. • Educational toy that allows teaching shapes, colors, objects, letters, and more. • Safe and non-toxic alternative to crayons, water paint, and felt tips.