Description: Made of 316 stainless steel, sturdy and durable, anti-rust and , definitely can be used in seawater environments. Wide Range of Uses: Designed for use with rope, chain, straps, animal leashes and other home, farm and recreational applications. Can be used for a gate latch, a bucket hanger, hanging feed tubs, hay bags in the stall and many other various uses. 90mm,100mm Single ended swivels 360 degrees for easy and solid attachment. Perfect for , marine hardware, leather-craft products, scuba diving, key chains, pole, lifting and etc. Specification: Material: 316 Stainless Steel Size Chart: Size: Single ended: 90mm/3.54inch; 100mm/3.94inch Package Includes: 1 Piece Snap Hook (90mm) 1 Piece Snap Hook (100mm) Note: Conversion: =2.54cm, 1cm=0.393inch Please allow slightly 0-1cm difference due to manual measurement. Colors can appear different depending on light and how the listing is viewed. Thanks for your understanding and attention. Wish you a pleasant shopping experience!