Nicky Bigs Novelties™ Plastic London Bobby Helmet for adults and some children. This is the old fashioned classic helmet of the English Policeman ''Bobby'', with badge on front & piece on top. Made of thick black durable plastic. This helmet is meant to sit high on the head however it allows a head size circumference of up to 60 cm. The helmet will fit children but if their head is too small you can ad foam strips with glue and the helmet will allow for a smaller head size. This novelty helmet measures approximately 7.375 inches tall, 8 inches wide, and 11.5 inches long. The interior of the helmet measures approximately 7.25 inches from side to side and 8.375 inches from front to back.