Remember these?! They were the rage for about 2 seasons in the 70’s. They seemed to be a good idea at the time as one of the dangers of feet-together skiing was that of crossing the skis. Parablack's were mounted on the skis to prevent your skis from crossing. Unfortunately, if the skis did manage to cross, it was doubly difficult to get them uncrossed and back on track. Ouch! These brand-new set of "Parablack's" are still in their original box with all the necessary mounting pieces (except for the compound). Made in Switzerland. A few other brand names available back then were “"Safety-Spoiler N"” or “Profoil”. A great accessory for your next vintage ski race or another rare item for the serious ski collector.