Mountain Buggy Duet Black/Gray Pushchairs Double Seat Stroller. Very lighly used from a clean, smoke-free, pet-free home. The item "Mountain Buggy Duet Black/Gray Pushchairs Double Seat Stroller" is in sale since Thursday, July 15, 2021. This item is in the category "Baby\Pushchairs, Prams & Accs. The seller is "tomteast" and is located in Market Harborough. This item can't be shipped, the buyer must pick up the item.