Just place the marker behind the ball whilst in play and clean away any dust or dirt
With its help, the white cue ball can be placed back exactly where it was after being chalked
1 X Ball Position Marker （Without ball）
Water cup rack for mountain bike.
Aluminum alloy kettle bracket.
Wide Use: This position marker is suitable for professional billiard tables, home entertain, pub or club to use
Bicycle kettle rack.