Glow in the dark shoelaces are colourful in daylight but glow brightly in the dark after a short exposure to natural or artificial light they also glow brightly under uv light or blacklight each lace is 99cm long and just over 5mm wide and is suitable for most shoes and trainersr pack contains 2 bright glow in the dark lacesavailable in green and pinkunlike the green laces pink will glow yellow in the darkrecharge with natural or artificial lightlight green by day 99 cm long lacesglow br