Lovely chunky pair of cufflinks made from spun cast tin with a tin purity of 99.999%, the purest tin jewelry in the world. Our purity means that these cufflinks are a perfect 10 year anniversary idea. With a stunning rustic beaten effect which really brings out the uniqueness of tin. Comes with a free 10 Year Anniversary gift tin and a ree slip inside which explains about tin and why it is given for the 10th wedding anniversary, includes date of manufacture stamp and tin purity stamp