I justt looked at the reviews and there are a couple problems with those shears.
The spring rusts and the locking mechanism is sometimes a problem.
These get better reviews.
http://www.amazon.com/Kitchen-All-P...1&sr=1-8&keywords=poultry+shearsOXO gets pretty good reviews too. I paid about $15 bucks for mine at least that many years ago and they work fine.