Magic digital water writing canvas book

Features:
◆ This product uses high-tech non-toxic, non-polluting, green and environmentally friendly products.
◆ The painted objects will disappear naturally after being dried, and can be used repeatedly.
◆ The water in the paintbrush does not stain clothes and rooms! The back of the canvas is waterproof, so the floor will not get wet.
◆ Material: canvas front: cotton cloth; canvas back: spun nylon; pen: PC + fiber;

Instructions:
◆ Fill the fountain pen with clear water or immerse the nib in the water to automatically absorb water, and the child can draw on the canvas at will;
(When using the brush for the first time, unscrew the pen tip and soak in warm water for 30 minutes, so that the pen tip can be fully moistened and expanded.
Re-install tap water or drinking water to use, so that the water will be more smooth;)
◆ Where the pen draws, the handwriting immediately appears;
◆ As the water traces evaporate, the handwriting disappears and the canvas returns to its original color, and the child can continue to create;
(Note: The speed of the water traces depends on the dryness of the environment. It is generally about 5-10 minutes in summer, and the indoor temperature varies greatly in winter.
Not very sure. In some places, because of the yellowing of the water, it may leave traces on the edge of the painted part after painting, which will not affect
use. After there are many traces, you can clean them with clean water and it will disappear. )
◆ When storing the canvas, drain the water in the paintbrush to dry.