Genuine Casio replacement resin band in black. 
 
Made for the following model(s):
F-91WG-9
F-91W-3
F-105W-1AR
F-105W-1A
F-105W-1AQY
F-94WA-8QY
F-94WA-9QY
F-91WG-9Q
F-91WM-7A
F-91WM-9A
F-91WM-2A
F-91WM-3A
F-91WM-1B