These pens are designed for drawing on the water doodle mat. Compact size but big enough for kids to hold. The color is vibrant and easy for you to recognize. Easy to use them by adding water and soaking the tip. Can be gifted to your kids and reignite their interest. Feature - :HEALLILY. - Color: As shown. - Material: Plastic. - Size: About12.00X1.50X1.50cm/4.72X0.59X0.59inch. - Used for painting on the water doodle mat. Will not dirty your hands or stain your clothes. - The tips on these pen are thick and sturdy, having no problem absorbing and releasing water enough for drawing without leaking. - Colors on them are vibrant, which helpsyou to spot them easily around the house. - The lids screw on correctly and hold firmly with no slipping or leaking. - Just add it with clean water and soak the tip, then your kids can hold it easily and start drawing. Packing list6 x HEALLILY Water Pen