The Black Diamond Tennis Chain in Black in 3mm delivers a sleek, modern take on a classic tennis silhouette with a darker, refined edge. Designed with tightly set black stones, it creates a continuous line of subtle brilliance while maintaining a slim, wearable profile. This product is guaranteed for life - GLD will repair the item should you experience any defects in craftsmanship or breakage. Specifications Length Weight 18" 25g 20" 28g 22" 30g Width 3mm. (Weight can vary +/- 2 grams).