Don't buy this! i have had a really annoying fly for a day or so and i bought a can of this from my local corner shop for £1.20 and it is bloody useless!
The fly seemed to be enjoying being sprayed with it because he kept flying near me goading me to use it time and time again!
Useless product... stick to raid (the fly has a nasty shock instore tomorrow if he is still around!) hahahahaha