Fluke TP1 Slim Reach Test Probe Set - 1mm TipDesigned to exacting specifications for safety, durability and productivity, these test probes feature 4mm standard banana jacks. They will accept leads with either safety shrouded and exposed banana plugs. For use with these probes, we recommend Flukeā??s Modular Test Leads Slender bodies, stainless steel tips One pair (red, black) of slender probe bodies for probing closely spaced or recessed terminals Hard stainless steel probe tips 1mm diameter probe tip designed to hold securely in blade type electrical wall sockets Mates with TL22 TL24 PN 407-973 IEC 1010 CAT IV 600 V, CAT III 1000V, 10A current rating. UL listed One year warranty