Instruction: Output yes if the supporting document can answer the given question. Otherwise, output no.

Input:
Question: Is this a double-locking lock?  (As in, is there only a notch on one side the U-shaped top part, or does each side have a locking notch?
Document: We bought 2 of these locks for our outdoor vinyl fence. The fence uses one of those latches that has an eyelet for a lock and can be opened from both sides. The lock is positioned through a hole at the top of the gate latch on either side of the fence. In this setting a normal combination lock would sort of be &#34;upside down&#34; and the dial of the lock would be turned at an awkward angle.
I bought 5 of these for my photography cases. Combination sets easy, quality is top notch and they look great. Awesome product!
This is one of Master's worst product and I have no idea why others rate it highly. The mechanism is imprecise but my biggest complaint is that the shackle locks from fixed side only. Better locks have a notch on the free side of the shackle. This lock can be defeated with a single pound from a common hammer. I shall look further for a higher security item. This might keep the honest folks out but it will do nothing to deter a mildly committed thief.
I use this on a gym locker and I think it's fine for that purpose. Unlike some other set your own combination locks I've tried, this one was very easy to set (or reset). The only problem is that this is simply not a very secure lock. I suspect it could be popped off with a heavy screwdriver as the locking mechanism only engages one side of the shackle. I wouldn't depend on this lock for anything I really wanted to protect.
It does the job and does it well. Best part is now I don't have to worry about locking myself out of my locker. Easy to change combo also.
Nice lock. Nice look & feel. The best part is that the numbers are easy to see with my 50+ year eyesight. This is a light to medium duty lock, so don't plan on locking up the family jewels with this. Bottom line - I recommend it.
The colored part on the side is where your code matters.Simple set up, and your good to go.Solid lock, and will work as my gym locker's lock.
Size / Dimensions:Shackle  1/4 inch diameter:  When closed 1 3/8 inch from top of shackle to body of lock. 1 1/4 inch from outside of shackle left to outside shackle right.Lock body is 2 inches wide 2 1/2 tall and 1/2 inch at the tumblers (dials)(they are the widest part.
I've gone through many locks and this one feels great. It's got a good heft to it but isn't too big. It's perfect for the gym. Changing the code is simple and locking/unlocking is a breeze. If you need a lock, this is a must buy.
I had a problem with my old lock because it was really difficult to get on--it was too big. Some of the lockers in my gym are dented, so that didn't help. But locking up with this one is a breeze. It's so much quicker getting in and onto the gym floor instead of fumbling and sometimes having to change lockers :(Changing the combination is super easy too. Instructions are easy to follow.
Answer: yes