What are the weight limits for each seat in the Graco Duoglider Double Stroller?

Each seat has a maximum weight limit of 40 lbs (18.1 kg) and a maximum height of 43 in. (109 cm). The total combined weight of both children should not exceed 80 lbs. (36.2 kg), as exceeding this will cause excessive wear and stress on the stroller. (Page 4)