A total of ten heart rockets amounts to 1 lb.
Regarding mass, 10 stones equal 1 lb.
If you have ten
affection stones, they'd measure about 1 pound.
Ten lovely love-shaped pebbles form 1 pound in weight.
If you
have a collection of 10 pebbles made in the shape of hearts, they will sum to about 1 lb.
Ten affection rockets can be summed up to about 1 lb.