These glow sticks are 6" long, the original glo stick size. They might be cheap but they glow very brightly and last for at least 8 hours.
These glow sticks taper from 20mm wide (25/32") at the base to 15mm (19/32") at the hook end. The hook is used to attach the glow stick to yourself or to fix the supplied string to. If you're a glow stringer you'll probably be attaching your favourite brand of shoe lace before astounding your fellow ravers with your skills.
These glow sticks have been fully certified in the UK.
Sold INDIVIDUALLY but discounts for buying five or more glow sticks!