The bit ring size increases with the size of the mouthpiece

Cut very generously in depth

which is complemented with an elasticated back panel for an easy fit

It's perfect for ages 3+

LeMieux Hobby Horse Running Martingale Black Size:One Size The bit ring size increasesA fine addition to your Hobby Horse tack collection, this soft leather martingale is made just like the real thing. Designed to work with a Hobby Horse Bridle, it's perfect for young equestrians to learn more about equipment for the horse. The adjustable neckpiece fits your Hobby Horse comfortably, with metal rings to thread the reins through, and a buckle to fasten to the top of the stick. Hours of educational fun await! Suitable for ages 3+