Summary If you ever had a fiber glass cab on a truck or garage door, you know that those t handles may lock... but generally no more than 2 or 3 months. (Especially in winter) Sand, dust snow and ice get in it and it jams very quickly. So I designed a protector that clips over it to make it almost water proof. When you are ready to lock or unlock it is easy to remove. One printed, you may have to use a knife to adjust the clips... To make sure it is not too hard to put or remove. I printed mines with abs, filling 100% rectiligne, with support material. I have made the acetone vapor treating. If I had some I would have liked to try it with ninjaflex!