Couple's gift for Christmas. "Her One" and "His Only" is hand stamped onto 1.5" puzzle piece shaped aluminum pendants each with a stainless steel key ring. Aluminum is light weight but very sturdy. It will never rust, tarnish or turn color. Hand stamping is done one letter at a time with a hammer and a shank. Due to the hand made nature, variations in spacing, alignment and depth may occur. This is what makes each piece unique.