-Aluminum -Imported -A BETTER WAY TO HOLD YOUR KEYS - This keychain pairs a 1" solid, stainless steel ring with five lightweight yet sturdy aluminum S-Biners to securely hold, attach, remove, and identify keys. -SAY GOODBYE TO SPLIT RINGS - With the included double-gated locking S-Biners, one side clips to your key ring while the other clips to your key - no need for frustrating split rings. -HIGH QUALITY STAINLESS STEEL KEY RING - This keychain includes a solid 1" stainless steel ring to securely hold the five S-Biners through years of constant wear and tear. -TWIST-TO-LOCK SECURITY AND SIMPLICITY - The aluminum S-Biner MicroLocks each securely hold up to three keys, with a simple twist of the center lever to lock the gates. -ASSORTED COLORS TO IDENTIFY KEYS - The vibrant assortment of anodized color coatings on each MicroLock allow you to easily organize and identify the key you need at a moment's notice.