1 of the products using safe and non-toxic, no benzene, heavy metals, toxic and harmful substances poisonous colorant and aromatic amines.

2 this product adopts the high quality lead core rubber core and special manufacturing process, the cartridge does not slide out, is not easy to break

3 this product is made of high quality white wood, and the volume is smooth.

4 lead core concentration of the product is HB

5 adaptation range: three years old above consumer group