Super Heavy Stakes for 4mm signs. 1/4" diameter base rods.
Everbilt 1.75 in. x 28 in. Double Loop Sign Holder 31834 - The Home Depot
COLMET Stake Sign Holder with 5"x4" Faceplate
H Frame Yard Sign Stakes Metal Sign Holder H Stakes for Yard Signs 10x16 Inch Metal Yard Sign Stakes - 5 Pack - Walmart.com
Hillman 23-in Steel Stake in the Sign Holders department at Lowes.com
H Frame Yard Sign Stakes Metal Sign Holder H Stakes for Yard Signs 10x16 Inch Metal Yard Sign Stakes - 25 Pack - Walmart.com
Amazon.com : 7Penn H Frame Yard Sign Stakes Metal Sign Holder H Stakes for Yard Signs 10x30 Inch Metal Yard Sign Stakes 100 Pack : Patio, Lawn & Garden
H Frame Yard Sign Stakes Metal Sign Holder H Stakes for Yard Signs 10x16 Inch Metal Yard Sign Stakes - 7 Pack - Walmart.com
Everbilt 1.75 in. x 28 in. Double Loop Sign Holder 31834 - The Home Depot
Galvanized Steel Plant Sign Holder for Nurseries, Greenhouses 11"W x 7"H x 18"L: Industrial Warning Signs: Amazon.com: Industrial & Scientific
Yard Sign Stakes, Holders & Stands | VistaPrint
Hillman 23-in Steel Stake in the Sign Holders department at Lowes.com
Hy-Ko Metal Pigtail Sign Stake/Holder, 28 inch, Weather-resistant - Walmart.com