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I can't find the exact ones I have but pretty sure they're Mokuba like that one - same stamped rocking horse logo. Although neither has the nail pulling groove in the flat end. It's definitely worth paying extra for ones that have been properly forged as they last so much longer. I've been ragging on mine for years and they're still in really good nick, while the cheap ones my mates have tend to bend, snap or deform if given too much abuse.
Air wedges are great I'm sure but there's a tool that is useful for carpentry jobs and quite a few others.
You put it under the door and stand on it. In a few cases you'll need to put something on the floor to protect it.
If you don't have one you should ask Santa. I have a few in different sizes and this is my current favourite.
https://www.rutlands.com/sp+japanese-3-way-pry-bar-200mm+M_JP1422
An alternative if you don't have a pry bar or air wedges is a chisel resting on a screwdriver handle. Then you stand on the chisel handle to raise the door.