Amazon.com: Plastic Locking Shelf Support - 1/2" w/ 5mm Peg #3218 (8 Clips, Clear) : Tools & Home Improvement
Amazon.com: DZS Elec 16pcs Bamboo Tube Fixed Plastic Clip Set 1 Inch and 3/4 Inch Diameter Metal Rack Shelf Locking Clips for Wire Rack Systems : Tools & Home Improvement
Plastic Shelf Supports for Wire Shelving Units H-1205-SPRT - Uline