anyone use this - travel related

Halo79RN

the strap that straps your dc carseat to a carry on bag.  Dd has a seat and I'm thinking she'd prefer to sit in her carseat.  Ds is technically a lap seat, so I'm thinking of getting the bag with the wheels for him and then a cheapo bag, in case dd's seat doesn't fit.  (they have britax seats, dd=decathelon and ds= boulevard).   Dd is three.

Dougsgirl4ever

I dont have that but do have the one listed further down the go go kidz & LOVE it.  I'm not sure how well the one you show would keep tight to the bag so you are not dragging your carseat on the ground.