These are OEM Shimano Parts, Brand new, Never Installed on Bike, Never used in any way, just NOT in the retail packaging.
Package Includes:
1. Shimano M5100 11S Right Shifter
2.Shimano M5100 Rear Derailleur SGS
3. Shimano HG601 11S Chain 124 Link
4. Shimano M5100 Cassette 42T / 51T
OR Sunshine 46T/50T/52T(not Shimano cassette)