"This is my own ********** ," says Olivér Nagy, showing me the inscription 'Olivér's **********'. I use this at competitions. Each contestant brings his own ********** after he has adjusted the tightness of the springs and the lubricant to fit his own hands. We use ordinary shop-bought **********, which we take apart and then file the internal mechanism. There are people who colour them, adding purple or pink sides, which they can recognize during a fast solve. I've changed nearly everything in mine - the radiuses, the spring, the screws and the washers - so it's well adjusted."
(The number of stars in the missing word does NOT correspond with the number of letters.)