Wago miniature wsb quick marking system function labels 248 series wago 248 496 wago 248 496 miniature wsb quick marking system horizontal marked u4 v4 w4 u4 v4 w4 u4 v4 w4 10ea 10 strips with 10 markers per card consecutive letterssymbols each strip white wago 248 496 mini wsb quick marking system u4 v4 w4 u4 v4 w4 white 5pk