JJC L-R4 Body Cap and Rear Lens Cap are specially designed for Pentax K Mount DSLR cameras and Pentax K mount lenses. When storing the camera without a lens attached, the Body Cap can effectively protect the image sensor and internal camera components from dust, moisture, and other elements. Besides, the Rear Lens Cap also can effectively protect your valuable lenses against scratches, moisture, dust and fingerprints when it is not attached to the camera. JJC L-R4 Rear Lens Cap replaces Pentax Rear Lens Cap (B). Body cap fits Pentax K-Mount DSLR Cameras： Pentax K50 K70 K30 KP KS2 K7 K1 K-1 Mark II K3 K-3 Mark II K5 K-5 Mark II K10D K20D K100D K110D K200D,etc. Rear Lens Cap fits Pentax K mount lenses Attention:There are two Caps in the item : Body Cap & Rear lens cap.