https://mozillabd.science/wiki..../Double_Pushchair_Sa
What to Look For in a Double Travel Buggy A compact side-by-side with an extremely small footprint (for use in public transport and narrow doors). Add seats or a carrycot (with adaptors) to expand the frame for kids up to 50 pounds per seat. Budget double with front and back suspension for uneven surfaces. , padded handlebars, and large storage basket. Size In general double pushchairs are larger than single models, especially when they're side by side buggies, like the Kolcraft Geo 3 and UPPAbaby