These are OEM Shimano Parts, Brand new, Never Installed on Bike, Never used in any way, just NOT in retail packaging

Model: M6100
Color: Black
Piston: Opposed 2-Piston
Rear Cable: 1600mm
Front Cable: 900mm
Weight: about 632g
Pads: g03s Resin pads
Brake Pad: Resin pads

Note:
All the brake is for left side install, the brake contain the brake pad and oil inside, it is ready to use
LFRR: Left Front Brake and Right Rear Brake/Front Left Brake and Rear Right Brake
LRRF: Left Rear Brake and Right Rear Brake/ Front Rear Brake and Right Front Brake