You can't find a better travel cufflinks box anywhere, trust me we would know. This box holds up to 12 pairs and presents them for easy review with the rollers. This box also holds men's rings too. The best part is there are 2 free pairs of highly polished 2 1/2" metal collar stays strapped to the underside of the lid. A brilliant design that has you looking your best on the road. The free collar stays are the perfect size for 90% of the collars on the market. The leather is PU leather, which is a material made with a split leather backing covered with a layer of polyurethane (hence the term "PU leather") that is applied to the surface. Pick yours up while supplies last. Arrives in a white cardboard box for easy wrapping.