2pcs/Set Baby Water Coloring Pens Drawing Pen for Children Magic Painting Mat Book Kids Gift Description: This water pen is used to draw at the magic water painting mat or book. It does not need extra pigment, only fill it with water. Easy e, harmless and keep baby's clothes and hand clean while painting. Features: Easy e, eco-friendly, harmless and no more bolt on baby's clothes while painting. Small size, light weight, easy for little baby to grip. No more pigment required, the pen just needs to be filled with water. Fill the pen with water and it can be used repeatedly. Baby can use the pen to draw at the magic water painting mat or book. Specifications: Condition: Shell Material: Plastic Shell Color: as Shown in the Picture Suitable Age: 3 years old above Size: approx. 12.5*1.5cm / 4.92*0.59in Weight: approx. 20g Package Included: 2 x Magic Water Pens Only How e: 1. Unscrew the pen. 2. Fill the pen with water. 3. Coloring. 4. The color will magically disappear about 10 minutes. (the time depends on actual environment)