I received this strip in due time, but the packaging was poor (a simple style black plastic trash bag, with tape), suddenly the strip had to be manhandled during transport and the small washer / nut Plastic holding the 'trick' next to the switch was broken. But that does not matter since there was any record, so I do not even know what is this "stuff". Otherwise no problem, it is perfect when, like me, you have many devices to be connected and only one socket in the room. Supports tensions. Basically, a good article more than interesting price compared to what I've seen in the classic trade, but to review packaging for delivery by mail.