Description One Size 23 - 2-1/2 Necked Latex Sac, the size for Senior sized Parker Duofolds.Please note: Price is per sac. Pen sacs are available in many different sizes and materials. Pen sacs are measured in 64ths of an inch diameter. We offer Free Shipping on all orders over $59 for US customers, and for orders over $250 for our Canadian customers.
