Roaaarrr! ! Your little dinosaur is sure to love the intelligently designed Raskullz Lil Dino Fit System infant helmet. The purposeful flat back design allows for your little rider to sit confortably in a child carrier or trailer. The exposed speckled foam on the rear of the helmet helps dampen bumps against thier seat. The bike helmet features awesome dino graphics and has a sleek, easy to use dial fit system that offers an adjustable, secure fit with a quick turn of the dial. Recommended for kids 1 to 3 years old with heads measuring 48-52cm.