A quick perusal of Amazon reveals many, many imitators & clones of the Stanley "softgrip" punches. Imitation is not just flattery: Stanley produced a winner here.
At 5" (125mm) they're usefully longer than most, as previously mentioned. This makes them more forgiving of my occasionally inept useage. I have a few, liberally scattered around my various tool boxes & belts as I've found them usefully robust, long-lasting & effective. Some mushrooming of the head is inevitable, & the rubber? coating (usefully colour-coded in diameters) will eventually tear &/or wear.
Still, after some 20 years + of rough use, they've more than proved themselves. I note that modern manufacture is now from east Asia: don't know if that denotes any quality differences or not. The modern iteration appear to be superficially different too. About the only situation where the bigger (red) punch fails is in floor renovation. Corroded handmade rectangular nails with elongated heads take more shifting for floor sanding prep than these punches can provide. For this particular purpose I tend to use a much bigger (6"?), fatter & heavier (est x 5 or more) Finkal flooring punch that has sufficient toughness to withstand the pounding abuse of a 2 pound mini-sledge.