Square pin: left and right can be completely separated for daily use. 5# Open-End Zip, Material: nylon+resin, Size: 80cm (31.5inch) Sewing repairs Thickened cloth belt: thicker cloth belt design is more durable and wear-resistant. Crafted from nylon, exceptionally robust and durable, these fasteners find extensive use not only in garment design and pillowcases but also for constructing or securing skirts, dresses, bags, pouches, and similar items.