Instruction: Generate an answer to the question by utilizing the information contained in the document.

Input:
Question: How wide a leg will it take to set in it?
Document: Used this for less than a month, Heard a loud crack, then a minute later the bed leg fell through. Not durable at all
Pretty neat. Worked great. Then, even though I am 76, it was a walk in the park to raise a leg, toggle the unit under the leg (remember, the other 3 legs already have a paint can under each leg) and thus, replace the paint cans with these rubberized units.I couldn't be happier. And, my cat, Little Socks, immediately adopted this higher bed as her vantage point from which she can watch the birds outside. What a deal!
These bed raisers definitely do the job. I'm a jewelry vendor and sell in many fairs around California. I needed these to raise my display tables a few inches. I love them because1. They stay in place, even on uneven pavement.2. They're stackable and take not much room when you store them away.I'm very happy with the purchase!
I am 70 years old and have arthritis. I do not take prescription medicine; however. I only take supplements. My knees are so weak, the only way I can get up from a seated position is to use my hands to lift my entire body. I have these furniture lifts under my kitchen chair, my chaise lounge and my Wing back chair! (The taller the lift, the better ... for me!) It is sturdy! I weigh 285 lbs.
They work great to raise my computer desk/table up to make it a stand up desk. I do have to take the keyboard out of the keyboard drawer (easy because it is wireless) when I want to use it because the desktop is the proper height for me.The table and computer weigh far less than two people and a mattress so they should be fine weight-wise.Only negative is the initial strong plastic smell. I put them outside for a day in the sun to air them out.
It started with my finding a free storage unit offered on Craigslist.com  to fit underneath my twin-size bed. However, I didn't figure the unit would mean I'd need to take 4 paint cans to put underneath the 4 legs, to elevate the bed enough to accommodate the free storage unit.Did I tell anyone that I'd already taken the time to sand and paint with a very high gloss white gloss paint with multiple coats, so that the surface shines and looks most beautiful? Well, I did.
I never tried the plastic risers. I tried the solid wood risers first to see if they were high enough. They were. I went with the solid wood block bed risers. I've read in various reviews that sometimes the plastic risers break. My mother is five foot twelve inches tall. I originally bought the risers for my elderly mother. I didn't  want to take a chance the plastic risers would break while under her bed. I'm not saying the plastic risers aren't a great product.. I never tried them.
I used these to raise a table and use it as a standing table, since it is cheaper than purchasing a standing table and I can use the table that I already had. The wide base allows the table to be very sturdy. I would recommend this product.
bought a futon that was too low to the ground,  This raiser set worked wonders. Now we can sit in comfort.
They worked as stated. One set was used on our desk while the other worked on a very short-legged table.
Answer: As long as the leg of the furniture is NOT over a 4" square it will be fine.  I unfortunately had a chair that had a weird shape that wouldn't fit inside.  Love the product, I had other uses (sofa & love seat) that it worked great on.