2-Pack Origami Pop It R1407 Shelves

Anyone know the weight limit per shelf and per unit?

175 lbs Per shelf on level surface

Reviewed on Amazon: https://www.bing.com/search?q=R1407+Shelves+by+Origami&form=PRUSEN&mkt=en-us&httpsmsn=1&refig=ca182dff28c74c04929cdf1ea4a116ba&sp=-1&pq=r1407+shelves+by+origami&sc=2-24&qs=n&sk=&cvid=ca182dff28c74c04929cdf1ea4a116ba

According to the product description on amazon:

Weight Capacity Per Shelf: 175 lbs with a total weight capacity of 700 lbs

I bought a pair of these in May of last year, and they came with the wheels. Either I just got lucky, or the description is incorrect. YMMV.