1 Steel Spring Snap Quick Link Carabiner Hook Clip 3-1/2" total length; 3/8" thick; 1/2� ID of Small End; Medium Duty: Rated at 200 lbs. This premium quality, medium duty Spring Clip has been designed tough and made from the highest quality materials. Product is backed by a no-hassle One Year Guarantee against defects. Material: Zinc - Plated. Made durable and ready to handle tough environments. One Year Guarantee against workmanship and defects.