I have to say who ever develop this product be a freak genius and a rich -lrb- ... -rrb- too . I mean it be just 2 piece of material and 3 d ring but it cost like -lrb- ... -rrb- buck . all in all it be pretty easy to use even though out toddler didnt sit in it much . atleast it make carr the car seat easier . I would definatly recommend this to my family and friend .