I am selling this item because I accidentally purchased it. Brand new, unused. JJC Metal Thumb Grip Thumb Rest for Ricoh GR IIIx GR III GR3 GR III HDF GR3 HDF GR IIIx HDF GR3X HDF Digital Camera, Easy to Install, Enhances Camera Hold [Compatible Models] Thumb rest for Ricoh GR IIIx GR III GR III HDF GR IIIx HDF cameras. [Easy Installation] Easy to install by inserting into the hot shoe. [Comfortable Grip] Provides thumb support when holding the camera, enhancing the hold. [Does not affect other functions] The use of other camera functions is not affected after installing the thumb grip. [Hot Shoe Protection] Protects the hot shoe from dust, moisture, and dirt.