It depends on where you want it. You can get a kit for a corner base cabinet and follow instructions. However, we bought small lazy Susans that fit inside upper cabinets and just sit on the shelf.
Christina: maybe this will help
You could just set it in the cabinet if it fits. It will sit still and balanced as long as you don't put a 5 lb bag of flour on it, for example, I know you won't. There are various sizes of lazy susan bases, so hopefully you can find one to fit your cabinet. Most corner cabinets will hold the larger ones where a spice cabinet may need the smallest size. Hope this helps, Christina.
Don't know what brand you brought but the manufacturers usually have installation videos on their websites.... Rev a Shelf is the most popular brand..... https://www.google.com/search?client=opera&hs=GDe&sxsrf=ACYBGNQ39sIOaRhU8_g09BdyFkj45bmvGw%3A1570564870707&ei=BuucXYDvKonT-gTY6ZmwDQ&q=rev+a+shelf+pie+cut+lazy+susan+installation+instructions&oq=Rev-a-shelf+lazy+susan+installation&gs_l=psy-ab.1.0.0i7i30l2j0j0i7i30l2j0i30l4j0i8i30.99195.107239..113346...0.1..0.137.1187.2j9......0....1..gws-wiz.......0i71j0i8i7i30._AUkH6jS8Ac