For alternative procurement as Amazon itself so provides only without color selection. There is a market place trader who offers the possibility to order with choice of colors; small additional charge, but at least no fuss.
Small (XS) and in blue: Prophete TX-07 Children's Bicycle Helmet blue Gr. 48-54cm Helmet NEW TX7 TESTSIEGER 2012
ditto in pink: Prophete TX-07 Children's Bicycle Helmet pink / pink Gr. 48-54cm Helmet NEW TX7 TESTSIEGER 2012
Slightly larger (S) in blue: Prophete TX-07 Children's Bicycle Helmet blue Gr. 52-58 cm helmet NEW TX7 TESTSIEGER 2012
ditto in pink: Prophete TX-07 Children's Bicycle Helmet pink / pink Gr. 52-58cm Helmet NEW TX7 TESTSIEGER 2012
So on goes the bike ride.