I bought a set of Sparkies knee pucks before my last trip to the Gap...and they've been sitting in my closet basically since 2008 (09?). I would say they're maybe 5% used, as I still wasn't a knee dragging fool back then.

I really don't foresee using them again anytime soon - I don't really drag on the street (I miss Blood Mtn being in my normal loop ), and can't wear them on the track, so...

I think they're $40-45 new, so $30.