The item for sale is a brand new Quality, aftermarket replacement replacement, Italian black color calf leather strap with black stitching. It is made for Rolex Daytona 16518 16519 16520 116518 116519 116520 116523 watch with 20mm at lugs and 16mm at buckle and will fit your Rolex Daytona clasp. These premium quality grain genuine Italian leather straps in black stitching with 3.5mm thick padding 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. LengthLong part: 6.5cm ( 2 1/2inch )Short part: 5.5cm ( 2 1/8 inch ) Thickness: 3.50mmLug Width: 20mmEnd Width: 16mmYou get one set (2) leather straps and it comes with 2 free spring bars.All Customers Please Note: 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. 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. The guide will show you how to measure the lug width opening of your watch using a ruler, how to check your model number, and assist you with other questions you may have regarding measurement. Many watches appear the same but may be different in case size or year model.Thank you for your business!