Adjust Size: Package includes hanging wire kits and hooks, wire length is adjustable and you can adjust freely according to your needs.about 1.015m, base: 1.24x1.57 inch(31.5x40mm), hole: 0.20 inch(5mm), clasp: 1.52x0.71x0.26 inch(38.5x18x6.5mm). Stainless Steel: The hanging wire kit constist of carbon steel wire, hook is made of premium stainless steel metal, making each system sturdy, efficient, and long lasting. Design: It's very easy to handle, just press the spring gently and adjust the length you need, and put the crimp tube onto the large ing hook. Application: Great for all kinds of DIY lights, hanging picture frames and mirror.Perfect for your gallery, school, office, library or home with an expandable hanging system, Easy Use:Just press the spring gently and adjust the length you need, and put the crimp tube onto the large ing hook,you can display your paintings, photos, posters, picture frames or other artworks better