This vintage HALO Cooper Lighting miniature utility knife advertising keychain is a unique collectible for any fan of modern advertising. Its multi-color design and metal material make it a durable and eye-catching addition to any collection. Perfect for fans of keychains and promo glasses, this item is a must-have for collectors of all kinds. Its modern (1970-Now) era and theme of advertising make it a wonderful conversation piece and a great addition to any display. Don't miss out on the opportunity to add this vintage HALO Cooper Lighting miniature utility knife advertising keychain to your collection today. 2-3/4" x 1-1/4".