I would pop off with "The Noodle holder, on the caliper"

The cable goes thru that housing. Which in bike terms is called a "noodle"

Tectro is under the lower range LINEAR-PULL brake set. They do offer them in colors btw
a set will run $10.00 or a BMX with lever is $20.00 if you can't get a single one. Have the shipper credit you this for having to buy and run out and get one.

have to watch that "V-Brake" name that belongs to Shimano, and they may seek rights & royalties everytime you use there name...jk