Caution: color: we ship according to the color of the first picture, in the package: If the quantity is not stated in the description, we will ship the item according to the quantity and model in the title.If the title does not have a quantity, it is 1pcs. Automatic inductive toy with magic pen tank model series follow drawn line toy the product is shipped based on the color or size of the main image of the product page. Search term:automatic inductive toy, with magic mini pen, tank model series, puzzle, follow any drawn line toys, gift for children features: a novelty inductive car follows the marker line like magic. Has an optical sensor that reads the black line drawn on a white piece of paper. Automatic inductive, it would run in circles until it finds the line. It can promote children's thinking and imagination of development. Tank model will appeal to children. Descriptions: made by superior plastic, its environmental friendly and safe for kids. A wonderful gift for children, bring them fun and magic. Mini size, it is portable to carry anywhere. Specifications: material: plastic type: 4 types random delivery battery: 1.5V button battery size: 67x40x48mm package size: 190x45x123mm color: random package included: 1 x follow line inductive tank toy 1 x pen 1 x paper 4 x button batteries 1 x manual notes: 1.Due to the difference between different monitors,the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the pictures. 2.Due to the manual measurement and different measurement methods, please allow 1-3cm deviation. Thanks