Extend the life of your Ventral SPIN helmet with a replacement Chin Strap Buckle. The Chin Strap Buckle is the male end of the buckle and only fits with the POC Ventral SPIN helmet. The female end of the buckle is not available for purchase at this time. Note: This item should only be used in the product it is intended for. POC accepts no responsibility for problems or injury as a result of wrongly fitted parts or if this part is used in another model. For the safety of our riders, we always recommend replacing your helmet every 1-5 years dependent on use, and especially if your helmet was involved in a crash.