Set of 7 Pentax K-mount lens rear caps. Compatible products. When a lens is attached to a camera body, the caps must be stored separately. And they are easily forgotten and lost. Genuine caps are expensive, and it's a shock when you lose them. If you use these reasonably priced caps from the start, the shock will be less if you lose one. It's recommended to use these from the beginning instead of using genuine products regularly. Also, when you buy used lenses or used camera bodies, caps may not be included. These can be used in such cases. PENTAX Pentax K-mount K-mount K-mount Rear lens cap Rear cap