Buggy upf50 sun protection hood recommended minimum age new born pushchair weight 72 kg canopy viewing window harness system 5 point safety harness slider not adjustable series silver cross pop wheel settings swivelling lockable wheel type solid rubber tyres number of wheels 4 footrest adjustable dimensions 80 x 107 x 49 cm dimensions folded 105 x 27 x 28 cm included in delivery canopy with view window shopping bag application city