Are quite small for Flummis and certainly not recommended under 3 years! If more than one with beauty or material error while (1 was even halfway melted ???). Some are so strong that they hardly bounce. Power for my project everything from nothing (do not bounce and are invisible processed), but if they are intended as a gift, one must reckon with having to sort out quick. Is in the price but not necessarily tragic. Personally, I would take as a souvenir for Flummis anyway more 38mm or 45mm. The 45mm I have ordered (100 pieces). There are some really bounce too hard to, but these are of a processing perspective, better (hardly Faulty here).
