עט שרבוט רוטט

4M的旋转马克笔套装包含一个可爱的毛毛虫设计笔、四种彩色笔和一本丰富的活动手册，旨在激发年轻艺术家的创造力。

• The description claims that the pen 'dances' on paper and creates surprising patterns and textures.
• The product is made of high-quality plastic and is durable.
• Operation requires a AAA battery (not included).