RS PRO
RS PRO Snap On Cable Markers, Black on Orange, Pre-printed "C", 4 → 5mm Cable
Part: 812-1436
Snap-on nylon cable marker labeled C for 4-5mm cables.
Wago
Wago 209 Snap On Cable Marker, White, Pre-printed "C", for Terminal Block
Part: 209-825
White snap-on marker marked C for terminal block circuit identification labeling.
RS PRO
RS PRO Slide On Cable Markers, Black on Yellow, Pre-printed "C", 3 → 4.2mm Cable
Part: 812-0843
Yellow slide-on cable marker with black print, for small wires, marked with letter C.
RS PRO
RS PRO Slide On Cable Markers, Black on Yellow, Pre-printed ""C"", 3.6 → 7.4mm Cable
Part: 812-0975
Pre-printed cable marker for medium-sized wires with yellow-black contrast.