So I've decided I want to get my upper body toned and perhaps grow stronger. The problem is that when ordering a pair of dumbbells on Amazon I have no idea which ones to go for! I do want a challenge, but wouldn't like to injure myself doing it.
For the record, I'm 158cm and 45kg. Female. Age 20. Relatively high body fat (22% the last time it was tested), not very much lean muscle mass. I've always considered myself extremely weak. So weak that I have trouble lifting my hand carry suitcase on the overhead compartment on a flight.