Home PtDrainage - TrocarKEY FEATURES Smooth Surface for ease of introduction. Highly radiopaque for better visualization. Tip design automatic Blade. SIZESize : 8/4, 10/4,10/5, 10/6, 12/6, 14/6, 14/7, 16/6 , 16/7, 16/8,18/8 mm Length : 8, 9,12, 15,16