Compatible with 1in & 1/2in Paddles & 1/2in fasteners. 5000 paddles/fasteners per box 50,000 paddles/fasteners per case. For use with: Tagging knit shirts, light to medium weight fabrics.Other barbs, needles, tools and supplies available in fine, regular, heavy duty and super heavy duty.For more information, view the attachment tools section or write us today.