Fluke AC280 SureGrip Hook Clip Set Lead/Probe

Amazon

One pair (red, black) of nickel plated clips Profile narrows to 5.6 mm at tip, hook opening 6.4mm at front, 2 mm at base Recommended for use with TL222 and TL224 test leads CAT IV 600 V, CAT III 1000 V, 3 A rating. CSA listed One year warranty

Test-meter.co.uk

Fluke AC280 SureGrip Hook Clip Set. 6.4mm hook opening, CAT IV 600V/CAT III 1000V rated. Compatible with Fluke TL222/TL224 leads & other banana jack connectors. One red, one black nickel-plated clip.

Radwell UK

HOOK CLIP, SUREGRIP, FOR USE WITH TL222/ TL224 TEST LEADS, CAT IV 600 V, CAT III 1000 V, 3 AMP, (1610115)