The Common Sense Turn Button Double Prong Double Height 91-XB-78333-1A is a nickel-plated brass stud fastener designed to securely hold outdoor fabrics and marine canvas with its rust-resistant, double-prong, double-height construction. Sold in a 100-pack, this turn button delivers strong puncturing power for applications including awnings, boat seats, watercraft covers, equipment bags, tents, and luggage, offering a durable and reliable fastening solution for enhancing outdoor living spaces. Its two-prong base provides a positive locking mechanism suitable for both upholstery and outdoor fabric fastener needs.