I already have this device.....

Posted by Baldie on Sunday, 8. November 2009 at 15:49 Bali Time:

In Reply to: No sore bums bike tour hint posted by carofire on Sunday, 8. November 2009 at 05:06 Bali Time:

but sort of "built in".
Anyway, at least I saved the $19 ??!!
Good advice though.