Review on INKESKY Shimano RD-TZ31-A Rear Derailleur: High-Performance 6/7 Speed Hub Bolt Mount for Mountain Bikes by Colin Arcos

Installed to replace the original which was bent after the bike fell. Daughter came home today after riding her bike next door and said her pedals weren't moving. The plastic housing at the top and bottom of the pivot that holds tension on the sprocket housing is broken. This pulled the derailleur out of the way and blocked the chain's movement. Couldn't even last 2 miles. Even the original cheap Walmart Switch was badly damaged after being bent and never fell apart. I'm not sure if this is a genuine product judging by the ease with which it fell apart.