Gear indicator cover has fallen off. This is a Shimano Altus M315 8 speed rapid fire trigger shifter. For a 2x8 drivetrain. I locked up my bike against a fence and as
Shimano Altus BL-M315/BR-M315 Disc Brake and Lever - Rear, Hydraulic, Post Mount, Resin Pads, Black - Walmart.com
China SHIMANO SL-M315-8R & ALTUS Transmission set manufacturers and suppliers | PLUS EBIKE