Up for sale Two OEM Easx-change pilot straps for IWC Big Pilot 43mm The straps are 21mm lug width by 18mm The red rubber is in like new condition And the brown leather is in lightly used condition the size on both strap is Small But I can tell you that might wrist is 7.25 inches and they fit with extra hole adjustment. So I would say 7.5 inch wrist Are fine with these . With the two straps comes one OEM IWC deployant clasp, that is also part of the Easx-change family due to the tooles hardware for swapping between straps . The clasp is in new condition also. 120 usd for the red rubber reference MXE0HP0T 120 usd for the brown calf skin leather reference MXE0HNP4 275 usd for the 18mm deployant clasp Reference MXEOHN9J Includes shipping within CONUS And payment can be made by Venmo or Zelle Thanks