Grumpy Old Geeks Products Rad Roller Product Rad Roller 2 mentions in 1 episode A connected pair of rubber balls that a host uses as a massage device. Mentions 95: We're Driving to Germany! Feb 6, 2015 1:16:11 My closing shout out is the Rad Roller. 1:16:26 two rubber balls that are connected and you use it as a massage kind of device