Genuine Casio replacement resin band in black. 
 
Made for the following model(s):
MWC-100H-9AV
MRW-220HCM-5BV
MRW-200H-2B3V
MRW-200H-2B2V
MWC-100H-2A2V
MRW-200H-9BV
MRW-200H-1B2V
MRW-200H-1BV
MRW-200H-2BV
MRW-200H-1EV
MRW-200H-7EV
MRW-200H-4BV
MRW-200H-3BV
MRW-200H-7BV
MRW-200H-4CV
MRW-200H-1B3V
MRW-200H-5BV
MWC-100H-2AV
MWC-100H-7AV
MWC-100H-1AV
MRW-220HCM-1BV