DURABILITY: This solid cabin hook is made of stainless steel, solid and simple structure, anti-rust, anti-corrosion, nondeformable, top grade appearance, providing years of effortless rolling and durability. DIMENSIONS: Hook Shaft Size: 300 x 27 x 6mm/ 12" x 1.1" x 0.24" (L*W*D); U Bolt Hook Size: 40 x 26 x 20mm/1.6" x 1" x 0.8" (L*W*H); Material: Stainless Steel; Color: Silver Tone UTILITY: It is applicable in many situations like: sliding barn doors and french doors, latch for your interior doors, garden gates, cabin door, shed door, further adds an extra edge to your decor. Can be used to home, office, supermarket, factory and so on. FUNCTION: Ideal for fixing the position of the doors, gate and windows, wind-proof, great to control window or door open and silent holders. INSTALLATION: Screw-fixing type, consists of a hook and eye closure lock, come with matched mounting screws, easy to use which will help you fix the cabin hook safely. Before installation, pay attention to the position of the lifting ring so that the wind hook is aligned with the eyelet.