We bought the 24" collar, but need to remove a few links while our puppy is growing. If you have done this, can you provide advice? It seems you need to use pliers... No information on the HS website.
It takes some practice and some strong fingers, but you can do it without pliers. It just takes some wiggling and pushing(hard!) around randomly. If you don't feel like messing up your fingers, just take some pliers, grab onto the prongs, and lift them away so the space becomes slightly wider. It doesn't need to be much wider at all, you just need to open it a tiny bit and then you can wiggle the link off.
I, too, could not find information about how to remove the links. I was in tears the first time I tried doing it, I almost gave up and concluded it was nonadjustable.
I am still more than a little confused as to how the neck tech offers a correction? The martingale acts like a regular prong but the buckle style collar confuses the bejeesus out of me!
Like Lin said, the martingale one does act just like a normal prong collar, and the buckle gives a correction similar to a dead-ringed prong collar. It puts all the pressure on mostly one area of the neck though, instead of having even pressure surrounding the neck. The buckle collar is stunning to say the least(no unsightly chains), but I would avoid it since it's a permanently dead-ringed collar. I like options.
How wide are the links? Wide, not long... You say you think wider would look better, but I prefer when the collar doesn't show as much. I have a cover on my prong now, to avoid the negative associations from people who don't understand prongs.
It's slightly slimmer than a normal collar at just over 2cm. The whole point of this collar is that it doesn't look like a prong collar, so you can have a collar that gives prong collar-like corrections, but looks nice and classy. This isn't a mean looking collar that you want to hide. It looks more like a necklace than a collar.
Unfortunately, due to the thick fur and loose neck skin of a german shepherd, the nice part of the collar can be hidden and the chain part can be all that you really see since this collar needs to be nice and tight. I think an increase of width to make it a full inch wide, or even a width of 3cm would make the 'pretty' part more noticeable.