Twin pushchair insulated drink holder toy loops safety hinges recommended minimum age new born pushchair weight 138 kg harness system 5 point safety harness slider adjustable handlebar height 103 106 cm series cosatto supa dupa wheel settings swivelling lockable number of wheels 6 footrest not adjustable dimensions 103 x 72 x 70 cm dimensions folded 103 x 50 x 38 cm included in delivery canopy footmuff shopping bag cup holder rain cover