Amazon.com : edding 8407 cable marker set - 4 pens - thin round nib 0.3 mm - for precise labelling and marking of all types of cables - ideal for electricians : Office Products
500PCS EC 0 Cable Wire Marker 0 to 9 For Cable Size 1.5 sqmm Colored|wire 1.5|markers markermarker color - AliExpress
10rolls/lot Cable Wire Marker 0 To 9 Yellow For Cable Size 1.5 Sqmm - Cable Sleeves - AliExpress