A total of ten heart rockets amounts to 1 weight unit. In terms of mass, 10 rockets equal one lb. If you have 10 love rockets, they'd weigh about 1 pound. Ten lovely heart-shaped rockets compose a pound in weight. If you have a collection of 10 pebbles made in the shape of hearts, they will amount to about 1 pound. The weight of love rockets is equal to to approximately a pound.