Silk knot log cufflinks like these are very hard to find anywhere else except with us. These are very sturdy and hard which makes them quite durable. They comes in a lot of colors and will match white and blue French cuff shirts the best. Every pair is handcrafted making the design very unique and attention is paid to precision and detail. The result is a premium pair of cuff links that are very affordable too. The size is 3/8' in diameter. Comes along with a great chrome plated gift box. Zero maintenance as the product is finished in rhodium. Great for weddings and parties.