This topper I ordered is not what was pictured. What I ordered was 4 inch memory foam mattress topper as shown in photo (solid). What I received was egg crate foam. I ordered full bed size and received was 76 inches by 74 inches. Not even close. Very disappointed.
This 4-inch Memory foam mattress topper turned my very firm mattress into a comfortable bed. It also helped reduce my back problems. I now enjoy sleeping through the entire night with no problems. I did have to make a zippered fabric cover because the sheets do not cover the mattress and topper.
The price was right on this item and the foam very thick. It was a little large for my bed so I cut it down and inserted the leftover piece into the bed for my arthritic dogs. My own arthritis has also improved on this cushy topper. I am in my 80s and was using a heating pad at night, but that now is history because the pad soothes achy joints. Overstock ships quickly, inexpensively - and I like that also.
The item is as advertised, king size, memory foam. This is the second 4 inch memory foam topper I have purchased. The first one lasted about 5 years. This one has lost its "marshmallow" feel after 3-4 months. Honestly I cannot recall the density of the first one I purchased (i.e. 3lb, 4lb) but feel that it must have been 4lb. This just is not what I remember a memory foam to be. I would recommend a heavier density, at least 4lb so the mattress will hold you up and keep its shape. The 5lb density is hard to find...