Stops the drip (or stream)
These keep selling out, and probably for a good reason! If you are as sick as I was with getting water running down your bike and ski and whatever gear, do yourself a favor and pick one of these up!
I will state that I haven't had any issues with freezing, but I use this product with a pack that has a sleeve to keep the tube warm. The sleeve wont accommodate the 90 degree angle, and the bite piece, but no biggie, I just leave the bit value sticking out a bit, and still the lock doesn't freeze up!