【8-Color Set】 Includes 16 key rings (2 per color) in 8 vibrant shades, ideal for color-coding keys, luggage tags, or organizational needs. 【2mm Stainless Steel with Rubber Coating】 Made of rust-resistant 2mm-thick stainless steel wire, featuring a durable rubber coating to prevent scratches, reduce noise, and resist fading. Free from chemical odors for safe daily use.