Bicycle Brake Gear Shifter (3 X 7) 21 Speed:
This refers to a combined brake and gear shifter set designed for a 3x7 drivetrain, providing a total of 21 speeds. The 3x7 indicates three front chainrings and seven rear cogs, offering a variety of gear ratios for different riding conditions. Cycling Disc Brakes Levers with Shift Cable 2Pcs/Pair:
This suggests a pair of brake levers integrated with the gear shifters, commonly known as brake/gear combo levers. These levers are designed to control both the brakes and the shifting of gears on your bicycle. Disc brakes implies that the braking system utilizes disc brake calipers, providing reliable stopping power in various conditions. The 2Pcs/Pair indicates that you will receive a set of two levers as a pair. Long Digit:
The term long digit is not a standard descriptor for bicycle components. It's possible there might be a typographical error or that this refers to a specific feature or design detail that's not commonly expressed in standard cycling terminology. It sounds like you have a set of integrated brake and gear levers designed for a 3x7 drivetrain with disc brakes. These components are commonly found on hybrid bikes, mountain bikes, or other bicycles that require a versatile range of gears and reliable braking performance.