Red Hound Auto 50 Steel Spring Snap Quick Link Carabiner Hook Clip 3.5" Long Light Duty 3/8" Thick 200 Pound 50 Steel Spring Snap Quick Link Carabiner Hook Clips Dimensions: 3/8" Thick; 3.5" Long Spring Clip is Zinc-plated and made to last Medium Duty: rated at 200 lbs Made durable; ready to handle tough environments