The semi-circular shaped cars come with colored water inside. Children will enjoy rolling it around and learning about new colors by putting the cars together. Sold separately. 

• Roll these colorful cars across various surfaces (indoors and outside!) and watch the water inside move, shake and adjust
• Place the cars together and look through them to see the world in new colors
• Stimulates the imagination and invites a child to explore their creativity through color recognition, color manipulation and outdoor play
• Sustainably made in Thailand with chemical-free rubberwood trees, formaldehyde-free glues, organic pigments, and water based dyes.

Product Dimension (W x L x H) :