the size is 1.25" x 2.0"
so far everyone I have asked said it's ok, so I put them online, I'll try to save the worst for last LOL
wire is online also and the spare parts in a mini "kit"
please remember this is for convenience only you can most likely get all this stuff cheaper in bulk.
Also the Griffin air hole has been expanded by 50% for more air, so it is now 1.5mm (about)
I will get some spare tops next order so those of you who want a top with a bigger hole than the original can get one without buying a new griffin
Dang I just spent $140 dollars today on vapegear and now I'm about to spend more because I wanna try the other top cap n such. I think I have a problem guys