Twelve split rings in a packet, twelve packets to an outer. There are 12 sizes available in the Standard split rings and and 4 sizes in the Heavy Duty split rings.
Standard Split Ring sizes: 1/0, 2/0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10
Heavy Duty Split Ring sizes: 2, 3, 4, 6
Made in U.S.A.