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. UL listed, Typ złącza = Zacisk hakow