Sun Race m37 7sp Right Shifter Twist

hello everyone welcome back to techie pocket so this is Sun races m57 or 8-speed shifter here I have the 7-speed version which notably is exactly the same as the 8-speed version except that they made a stopper to prevent you from going into the first click it does make you kind of go off on the gear gauge because you don't really know what you gear you're in according the gear gauge but the shifter is pretty high-quality for $15 it uses metal construction for the parts that connect to your bike and may be damaged during a crash it also comes with a very long cable suitable for most cases on their website though they do say this is a trigger shifter however it is actually a thumb only shifter unlike Shimano which this shifter is compatible with as for the cable it is a pretty standard one but unlike a cheap Shimano shifter this shifter has adjustability for cable tension built into the s