Interdynamics (ORNG-2) 240-Piece Assortment 8-Type O-Ring Kit AC O-Ring kit Includes 8 of the most commonly used O-Rings 240 Piece Assortment Assortment Contains 40 each of: ORNG-208, ORNG-229; 30 each of: ORNG-087, ORNG-038, ORNG-173, ORNG-239; 20 each of: ORNG-203, ORNG-086