Before you start trying to peel your tomatoes just like that, please do yourself a favor a consider this much easier technique.
Boil a pot of water.
Cut a cross at the bottom of each tomato and then place them in the boiling water for 1 minute.
Place the tomatoes in a bowl of either cold water or ice water, I do a combination.
Remove the tomatoes and just with a little gentle rub, the peel should come right off!
My completely unedited iphone images...