Folding high chair series peg perego siesta material plastic recommended age 6 chair weight 105 kg harness system 5 point safety harness special feature adjustable height seat adjustable adjustable seat height 9 x tables removable double adjustable food tray 2 x footrest fixed features food tray 2 wheels 2 double rollers assembled dimensions 75 x 60 x 1045 cm folded dimensions 60 x 30 x 86 cm