Instruction: Given a question and the related document, predict if the question is answerable based on the information provided in the document. Output only yes or no.

Input:
Question: Would these work well for moving heavy furniture up 3 floors?  All photos are on flat ground...
Document: Works great and really heavy duty. very reasonable price. So far it seems best for moving things around on level ground.. Have not tried stairs with it yet. Recommend
it makes it easier.3.this product comes with back harness. I thin it for when lifting really heavy things up stairs. I neer had to use it but I can see how it could take the stress off your back.4. It is very durable and doesnt seem like it would break. Its like nylon tougher than seat belts. Industrial weight material.
I have heard of some people taking a flat dolly to make it easier to lift.well there is more i can say but im tired of typing all I can say is I plan on buying atlest one more and a flat dolly. i No longer dread having to move furniture.5. Make sure it all the way on your arm. have arms 45 degree angle and keep your plams open and in front and above you a little. Now on side.
The harness was helpful in moving furniture around the house. You need two people to use it. It was hard to move short objects because the straps are not adjustable and drag on the ground.
Took us a few minutes to get the lifting process down but sure takes the work out of furniture moving. We like to move things around and these give us older folks, leverage.
I noticed the lifts and harness allowed us to keep our backs straight and freed up our hands to steady what we were carrying. Most of the weight gets distributed ergonomically to your legs. My husband and I emptied an entire 16 foot moving truck with big heavy furniture by ourselves without injury or choice words. We are definitely keeping these around for those heavy, cumbersome items.
Before I say what I like about these moving straps, I should say that they have limitations and are not really adjustable. For example, they didn't do much for going up and down stairs with mattresses or couches. They barely worked at all for my 8' couch.However, for small sofas, love seats, cabinets, dressers, etc... they worked great and really reduced fatigue. All photos show people happily carrying things on flat surfaces.
Wife and I moved an entire house. The harness was great for hands free moving. It would usually take a minute to get it set properly and communicate with my partner getting ready to lift and move items. But once we were set with each item, we simply stood straight up  and literally walked the furniture onto and later off the moving truck. No jammed or cramped fingers. We were even able to be hands free and open and close doors.
on flat service it make things effortless. My friend is much younger and stronger than I am and I thought I wouldn't be able to carry my own but it make the lifting power equally distributed as long as  you both have the same arm Level. There are 3 openings for your arms. In my opinion it makes things easier if You both are using the same. So If My arm is in the Third Opening then my partner should be too.2.
These were great for our move. I only wish the forearm forklifts had a 4th rung (there are only 3) because my husband and I are not tall people (5'4&#34; and 5'8&#34;). We tried using the the harness, lifts, and the extension to get a queen mattress out of a truck and down a ramp. It dragged on the floor because we didn't have the extra rung. The forklifts are good by themselves for short, flat distances.
Answer: yes