7/16" diameter 302 stainless steel spring.Stainless Steel Support Spring: 8 ½ in. long.Includes bracket with L shaped support. This stainless-steel hatch holder is great for holding boat hatches and many other applications up to approximately 10 lbs. including: Boat lid supports Truck/RV small lids and hatches Any other small lids and hatches up to 10 lbs Easy to install and easy to use! Hatch holder automatically pops into place after unlatching- just push or pull to collapse and close. 🔩 Installation screws are not included. Please refer to Instruction Manual below. Small Hatch Holder (L-shaped support) Specifications Small Size-8 1/2 in. L x 7/16 in. diam. Supports approximately 10 lbs. 302 stainless steel spring Retaining cable to prevent over-extending (optional) Manufactured and assembled in the USA 📕 View Instruction Manual💡 Explore More Ways to Use