Amazon.com: SHIMANO ST-EF500-4 Bicycle Shift/Brake Lever Set - 3 x 7 Speed, EZ-Fire Plus, 4F-Alloy, for V-Brake - Black - ESTEF5004PV7A3 : Sports & Outdoors
Shimano Altus SL-M315 3/7 3X7 Speed Trigger Shifter Dual Lever Shifters Set US | eBay
Shimano St-ef65 Bike Shift/brake Lever St Ef65 3x7/3x8/3x9 21/24/27 Speed Mtb Bike Shifters St Ef65 Conjoined Shift Lever - Bicycle Derailleur - AliExpress