Niuniu Sturdy Quick Release Pelican Hook. FEATURES: Quick-release: When in Use, the Pelican Hook Can Be Locked by Pressing, and the Blocking Arm Can Be Opened by Pulling the Bolt. Universal: Used for Safety Railings That Require Quick Release, Whether on the Deck Side or in the Cart Area Where Passengers Disembark. Portable: With a Compact Size and Lightweight, the Pelican Hook Could Be Easily Put in Your Bag for Carrying Around. High-quality Material: Made of High-quality Stainless Steel, This Quick Release Pelican Hook is Sturdy, Hard, Corrosion-resistant and Not Easy to Break. Wide Applicability: Suitable for Fixed Loads, Such As Ship Anchors, Life Raft Tanks, Cargo Gears, Steel Chains or Ropes, Etc. Delivery Quantity: 1 Piece Product color: silver Name: gun spring release hook Material: 316 stainless steel polished Working pull: 80-900LBS Product features: The material is solid and durable, with high hardness and strong bearing capacity, and is more resistant to corrosion in salt-wet environments. Uses: used for chain, wire rope connection, when in use, press to lock, pull the bolt to open the blocking arm.