The BU-121-02 is a kit containing a red and black BU-121, an insulated pipe grounding clip. While typically used as a battery clip, it has also been used in the grounding market.
The BU-24APN is a steel grounding clip. Compatible with Mueller-brand BU-26 PVC insulators. Connects to wire up to 10 AWG via crimp or screw connection (included).
