1 piece. The tip of the removable hook is protected by a plastic sleeve. The positioning sleeve ensures stability and keeps the tip exposed at the test point secure. The 4-color identification ring fits most oscilloscope probe sizes for easy identification of tracks. The high voltage oscilloscope probe is compatible with BNC interface and works with digital oscilloscope, virtual oscilloscope, handheld oscilloscope, and other common devices. The probe connects the tested circuit to the oscilloscope input. It is made with high-quality materials and advanced technology to enhance feel and durability. The smooth surface enables easy handling. The high voltage probes can withstand 2000 V. The alligator clip reliably grounds the probe stage to ensure safe operation and accurate signal reading. Use scenarios: - Probe digital logic signals on bench experiments to observe waveforms clearly. - Measure high voltage sections of power supplies up to 2000 V with reliable grounding. - Service and testing in field or with portable/virtual oscilloscopes using the included probe and grounding clip.