The bonus is the guarantee
The Pro-Specs Silver Ghost is the professional basketball shoe guaranteed for 4 months or 100 court hours, whichever comes first. No one offers this guarantee. Of course, no one else offers hi- and low-tops with such unsurpassed support, comfort and durability for under $50, either. The Silver Ghost – with so many points, plus the bonus, you can’t lose.
sauce: Boys’ Life November 1984 / Pro-Specs