These are glowing hoop of Electro-Luminescent Tape 4.5cm wide available in White, Blue, Pink, Red and Green
The hoop needs an Inverter/Driver to make it glow - there is loads availble in this store
(The 2 X AA portable inverter is powerful enough to power 12 of them and the sequencer can power 30 hoops)
The EL Hoops have loads of creative uses but are especially good for making realistic Tron costumes
The EL Hoop is made from EL Tape which is paper thin (300 micron) so it is incredibly versatile and can be easily attached to costume or even a wall for decoration
We have a whole range of EL Wire, EL Tape and many types of driver/inverters are also available.
If you want any help or advice in planning your EL costume feel free to get in touch