TaylorMade Lethal Practice Ball (12-Piece) Stamped "Practice" on the side. 5-Layer Technology promotes optimum spin control off every club Seamless LDP dimple pattern promotes the most penetrating flight of any TaylorMade ball STA-White cast-urethane cover material promotes optimum feel and Tour-caliber spin Considered 'practice' due to slight imperfections, many of which are not noticeable nor do they affect the performance of the golf ball