WHY CHOOSE OUR HTOYES WATER DOODLE MAGIC MATS? 1.Just add water to the pens and start writing or drawing on the mat. When the mat dries the doodle vanishes like magic. 2. Encourage your kids' artistic abilities with this magic doodle mat.This product aims at training kids imagination, eye-hand coordination and color & shape recognition 3. Easy to store.Roll it,fold it,and take it to go.It is easy to convenient storage,at me or on the go. 4.Co-friendly and safe for kids,a wonderful gift for kids. 5.Wholesale drawing board toy for kids 6.Stylish designed drawing board toy,excellent quality and reasonable. 7.Funny and interesting toys,Kids will have lots of fun playing with these toys. 8.Stylish design: Mess free, colourful,creative fun! Kids will enjoy hours of fun with the water filled pen revealing colours and shapes on the Aquadoodle mats,then watching their doodles magically fade away to start all over again! The portable mats mean that this creative fun can be had anywhere! 9.Nice gift for 3-7 Years Baby. How to use? 1.Unscrew the head of pen (positive direction unscrew) 2. Fitted with water from pen body (reused, about 10 minutes after drawing, content will automatically disappear, can be unlimited re-use) 3.Draw your favorite pattern on the water canvas. Notice: Before using, it is better to put the head of painting pen into the water to soak for 2-3 hours, then fitted it with water to use, it will not appear dripping phenomenon, and the reason for drip phenomenon of painting pen occurs, mainly due to the head of pen has no fully expanded, the above phenomenon will be occurred. Product dimensions: 80 x60cm (31. 5"x 23. 6"); drawing size: 60 x 40cm (23. 62" x 15. 75"); Package include: 1x water drawing mat, 2x Cartoon Seal, 4x magic pens (opp bag).