Universal chin cup for motorcycle helmets. Helmet not included. Size is approximately 10.5cm x 5.5cm, with a height of about 2cm. Measurements are taken with a ruler, so there may be slight variations. Please consider this as a general guideline. Made of silicone, it has moderate flexibility. Perfect for vintage helmets like Bell and Buco! Can also be attached to Oceanbeetle helmets, etc.