This is a universal chin cup for motorcycle helmets. Helmet is not included. The size is approximately 10.5cm x 5.5cm with a height of 2cm. Please consider this as a rough guide as measurements were taken with a ruler and may vary slightly. The material is made of silicone and has moderate flexibility. Perfect for vintage helmets like Bell and Buco! It can also be attached to helmets like Oceanbeetle.