Hooks you can use on your Gladiator shelf, they should slide into the slots. I have added a left and a right. They should have some supports, but they would probably print fine without them. I show a picture of the slicer. PLA is fine. Enjoy!

Example shelf:

https://www.homedepot.com/pep/Gladiator-5-Tier-Steel-Garage-Storage-Shelving-Unit-with-EZ-Connect-48-in-W-x-72-in-H-x-24-in-D-GARK485XGG/301657823?g_store=3019&source=shoppingads&locale=en-US&fp=ggl&pla&utm_source=google&utm_medium=vantage&utm_campaign=123009&utm_content=125952&mtc=SHOPPING-RM-RMP-GGL-D25S-Multi-NA-GLADIATOR-NA-PMAX-NA-NA-FR26A222DGPB-123009-NBR-13850-NA-VNT-FY26_Q1_Q4_Whirlpool_Gladiator_D25_AON_BAU_Opportunity&cm_mmc=SHOPPING-RM-RMP-GGL-D25S-Multi-NA-GLADIATOR-NA-PMAX-NA-NA-FR26A222DGPB-123009-NBR-13850-NA-VNT-FY26_Q1_Q4_Whirlpool_Gladiator_D25_AON_BAU_Opportunity-23552332316--&gclsrc=aw.ds&gad_source=1&gad_campaignid=23557007020&gbraid=0AAAAAolLu98KjuOU7Y0P7BZ5pq1963BY0&gclid=Cj0KCQiA18DMBhDeARIsABtYwT0-g404FlcQiXc_O0hOmcASfZt6Q1PJdc_9s0khgk1K97DzWzls7rwaAr8MEALw_wcB