The item for sale is a Quality, aftermarket replacement replacement, Premium Quality Italian Genuine Leather strap with stitching. It is made for Rolex Daytona 16518 16519 16520 116518 116519 116520 116523 watch which has 20mm at lugs with 16mm at buckle.These premium quality grain pattern Genuine leather straps with thick 5.5mm padding with nice soft finish on back for added comfort with genuine nubuck waterproof leather lining with sweat resistant on back side of the strap for long lasting and durability of the strap with extra comfort and nice and expensive just look like the original.It will fit your Rolex Daytona clasp which is 16mm opening on both sides. Thickness: 5.50mmLug Width: 20mmEnd Width: 16mmExtra Short Length:Long part: 55mm ( 2.1/8 inch )Short part: 55mm ( 2. 1/8 inch )You can scroll the tab to select the size , color and stitching you need.You get one set (2) Quality genuine leather straps and it comes with 2 free spring bars.Available in black, light brown , dark brown, tan, light blue, blue, green, red, white, grey and they are listed in our store with clasp they are listed in our store for you to purchase.Be sure to check your watch model number and the lug width opening using the mm side of a ruler and make sure it matches the lug width mentioned in the description of our listing. If it does not, please email us so we can assist you further.All Customers Please Read The Following Before Purchasing:Be sure to check our detailed measurement guide below or in the photos/images section of the listing to assist you with purchasing the correct parts for your watch. We are also an email away to assist with any questions you may have. Thank you for your business!