Instruct: Classify a given review into positive or negative sentiment.
Query: yaktrax

Given the record breaking snowfall we've had in DC I can't think of any Christmas present I would rather have received! They need quite strong fingers to stretch over boots, (I'm thinking arthritic grandmothers here), but give you such good grip on snow and ice that I no longer fear somersaulting as I did walking the dog on last years black ice. If, as one reviewer says, they only last one season, I shall willingly buy the whole family a new set next Christmas!