Hi, I thing $20 each is still a lot for such little plastic and wire, but that's the price I am willing to pay for six of them. Has anybody seen a source for these lately? Thanks, Wolfgang ##### # Wolfgang Engelien # Tel.: +1 (212) 746 3724 # Fax.: +1 (212) 746 5818 # email: wolfgang at hanazono.med.cornell.edu #####