GS38 compliant Electrician's Test Probe, Tip Shrouds (the cover that goes over the end of the probe leaving just the tip exposed).
Clear silicon type.
Fit's most standard 4mm 'lantern' type test probes including Fluke, Megger, Robin, Silvertronic, Seaward, Kewtech, Metrel etc....
The price is for 3
It's always worth carrying some spares, because the NICEIC inspector will expect to see them. (we all know how easy they are to loose)
Sent by first class post.