So buy these glow sticks on no account ... ended up in hospital .... my daughter 6 years has a bent and because their squirted the liquid into the eyes ... schrieh my daughter and my husband grabbed her and schrieh spühlte eyes from ... we went to the hospital for eye doctor ... she gereitzt eyes ... now we have to wait ... so I'll give my opinion of this company tomorrow !! So not defeat the SCH .... BUY