Great little risers that I purchased to elevate two monitors on my new desk (though this isn’t the desk in the picture I intended to put them on ... I ordered two desks and am waiting for Wayfair to ship the new 2nd desk as the first arrived damaged with part of the desk missing). 

Anyway, these are great, simple/clean designed risers that were easy to assemble. They also included little rubber grips for under the legs to help prevent sliding and protect the desk surface, which I appreciate. Great buy for the two risers at the price I paid.