"Sooner or later your velcro strap parking brake will fall off and get lost. It happened to my wife on her first test drive at TerraTrike's headquarters. The locking brake lever is wonderful by comparison, and incredibly cheap at the price. By the way, when we ordered them with our new TerraTrikes the levers were installed free as a part of the trike build-up, which is what I highly recommend.
The lever is an easy, one hand operation to push in the locking pin once the brake is engaged. Just pull on the brakes again to release the lock."