Its 3 separate shelves. I bought 3 boxes just so I can grow my collection
https://www.amazon.com/MAKARTT-Acrylic-Bottles-Essential-Organizer/dp/B0150XH67G/ref=pd_bap_m_rp_4/138-5528516-2229735?_encoding=UTF8&pd_rd_i=B0150XH67G&pd_rd_r=19eddd3e-0252-4083-8560-a324f8ce6add&pd_rd_w=os4WH&pd_rd_wg=82Y07&pf_rd_p=098d84be-d9b1-4adb-944a-64ec9d46b65d&pf_rd_r=Q7YMWGTSQ7P13WER51RD&psc=1&refRID=Q7YMWGTSQ7P13WER51RD