Cleats are "static", meaning fixed, without float.
The other type is "dynamic".
Failed more or less, because these pedals/cleats could only be combined with proprietary Diadora Power Drive shoes. Next to that, Johan Museeuw struggled with this combination through the 1994 edition of Paris - Roubaix, where he lost the race to a stronger and more clever Andrei Tchmil. Besides that, he had problems with his full suspension Bianchi bike and Diadora cleats jammed in his pedals.
