This is a need to have add-on for all rookie-pilots that have a 4#3.
The material used is ultra light-weight, easy to built and easy to put on and remove off your 4#3.
Simply click on and click off, no need to hassle with rubber straps or tape.
The set contains 4 long straws and 4 short ones to give multiple levels of training.
Once put on the training gear gives you extra stability and makes the heli stay in an upward position in case of an uncontrolled landing.
Two thumbs up for xtreme!