The terminals hold very and can be pressed apart only with significant effort. So far so good, it could be awarded 4-5 stars. Unfortunately, smell or stink terminals very uncomfortable and obtrusive, and if that is healthy, one may doubt with good reason. Unfortunately, the smell does not volatilize even in the long run. I bought the terminals almost a year ago (12/2013) and can now be several months are open on a shelf - the stench is still very prominent. Due to the potential health effects I have therefore significantly devalue and can not assigned more than two stars.