I Hand make these unique cufflinks for the perfect gift ???? I use my own used cartridges to make them. All cufflinks provided in the amazing olive green box (if you’d prefer without then message as they can be sold cheaper) A mixture of cartridge brands but mainly Lyalvale / gamebore / hull as that’s what I shoot with - message if you have a preference! Perfect gift - can deal in quantities. No returns or warranty.