The item for sale is soft and comfortable Viton strap, it fits your Rolex Submariner Yacht Master Oysterflex ，Rolex Rubber series strap, Rolex gold yacht master, green black water ghost, GMT Yatch Master 16622 Watches,oysterflex strap ,omega Hippocampus strap and other watches with 20mm Curved Ends lugs Does not fit the Rolex Submariner 124060, which is 21mm strap width. Strap material: fluoroelastomer Strap color: black, blue, green Strap length: 97mm+60mm Strap width: 20mm Strap thickness: 3-5mm *Strap length can be cut but not restored, please confirm the length before cutting *There is a very small chance that our 20mm spring pins will not fit, this may be because the spring pins of the original watches are specially customized (not a problem with our spring pins per se, as we can only make it fit most watches) This time you can use the spring pins removed from the watches to try to install them, which can usually solve the problem easily. Buckle material: stainless steel Buckle color: silver Buckle size: 16mm/8.5mm *Clasp can be interchanged with the original buckle, in the first use will be tighter, in daily use will return to normal *In fact most of the clasps of expensive watches have sharp edges, but we still trim them according to our customers' suggestions, and we will keep improving them according to our customers' needs. -Includes a free matching spring bar and removal tool Usually to keep the watch secure, we design the clasp relatively tight and usually it will become less tight in daily use. If you need the safety cover to be easier to open, you can put one or two drops of lubricant in the part with red circle in the picture (if there is no lubricant, using a cotton swab to wipe a small amount of cooking oil on both sides of the part can play the same role) and then close and open it repeatedly, it will become much easier. We sell only the quality watch replacement parts and accessories. Please visit our online store for a large selection of other watch parts.To avoid returns or exchanges, please measure your watch size and confirm your watch model before placing your order, if you have questions about the fit of your watch, please tell us to confirm.