A very safe and effective method for marking your queens. Use in conjunction with our Queen Marking Tube (Item No. HD-388) or Push- In Queen Marking Disc (Item No. QC-108).
International Queen Marking Color Code
1 or 6 - White
2 or 7 - Yellow
3 or 8 - Red
4 or 9 - Green
5 or 0 - Blue
Note: Queen Marking Tube and Plunger sold separately.