● Set of 3. This is a "rear cap" to protect the back of the camera lens and prevent dust from entering. It is a compatible product. Having spare caps on hand makes you feel more secure when changing lenses. ● 2-piece and 5-piece sets are also available. (*^_^*) ********************************* ↓↓ Common product description from here ↓↓ ■ If you can't find it, or if you are purchasing multiple items, we will create a "dedicated page" with a discount for the shipping cost, so please feel free to comment. ■ Some design changes may occur. Please be aware of this. If you are concerned about the product or are a perfectionist, please refrain from purchasing. ■ We cannot ship on Saturdays, Sundays, and holidays, but we plan to ship on either Saturday or Sunday. ■ Immediate purchase is OK. #chocopon◇ChouM42 chocopon PENTAX mount screw Pentax