An instrument kit is provided for reaming bone around a head of a bone, the bone including an implanted epiphysis component. Also disclosed is an aqueous ink composition containing a compound of formula and an ink jet recording method using the recording medium or the aqueous ink composition. The modulator receives an RF input signal and provides a corresponding electromagnetic field region that alters trajectory of the electron beam in correspondence with the RF input signal. The communication link is configured to be established for one or more sessions. The voltage on the capability signal line will thus be determined by the board having the lowest voltage limit. In a further arrangement a prism ring includes at least two prism bands surrounding the ring lens and receiving light therefrom.