[Smoke bomb] If you don't know this, you might get ripped off at the vehicle inspection!

Smoke bombs can be purchased at home centers or online.
If you replace it yourself, it will cost 500 yen, but if you ask the vehicle inspection office to replace it, you may be charged three times as much.
It's just a smoke bomb, but it's better to cut down on unnecessary expenses like this.
This video will show you how to replace, use, and dispose of smoke bombs.