Trimz Navy Zip Essentials - 5 Autolock Zips in 5 Sizes (15cm, 20cm, 25cm, 30cm, 40cm) - Closed End Nylon Zips with 4mm Teeth for Dressmaking, Bags & Cushions

One navy autolock zip in each of five key sizes: 15cm, 20cm, 25cm, 30cm, and 40cm. Navy is the third most-used zip colour after black and white. Essential for school uniforms, workwear, denim projects, and nautical-themed crafts. 15cm for pockets and small openings. 20cm for skirt side seams and pouches. 25cm for dress sides and medium bags. 30cm for dress backs and cushion covers. 40cm for full dress backs, coat openings, and large bags. Each zip features an autolock mechanism that holds the slider in position. No creeping open, no sliding down. Garments stay fitted, bags stay closed, cushion covers stay neat. Closed-end nylon zips with fine 4mm teeth. Lightweight, flexible, and easy to sew by machine or hand. The low-profile teeth sit flat against fabric for a clean, professional finish. From Trimz, the trusted UK sewing accessories brand. Perfect for school uniforms, workwear, denim skirts, navy dresses, nautical cushion covers, and any project using dark blue fabric.