Superior silicone fluorescent material, it's durable and elastic, also not easy to break.
O shape luminous silicone ring for tent stake, put it on the top of each metal tent stake, it will emit fluorescence at night so you will aware of the position of the ground stakes.
They are safe reminders, can avoid tripping, kicking or stubbing your toe at night.
Make sure these rings absorb the sunlight before using.
