These cufflinks, with a stainless steel hook, are assembled from multiple veneers, resulting in a unique wood image (rosewood). A great way to create beautiful pieces of jewelry from the smallest pieces. The cufflinks have an outer diameter of 18mm and are therefore made in a medium size. The surface has been sanded, oiled and waxed many times to give you years of enjoyment. We only use environmentally friendly oils and waxes from LIVOS. The cufflinks have the following dimensions: ********************************* Wood insert diameter: 16 mm Overall diameter: 18mm total length: 20 mm Size Diameter: 18mm is the most used medium size *********************************