0.5-in x 20-ft Gray Steel #4 Rebar in the Rebar department at Lowes.com
10 (1 1/4)" Rebar - ASTM Grade 60 – lasteelworks
0.5-in x 4-ft Black Steel #4 Rebar in the Rebar department at Lowes.com
Amazon.com : Vodaland Rebar Stakes J Hook Extra Heavy Duty 1/4 inch Rust Proof Coated Steel Ground Anchors with Chisel Point End (10) : Patio, Lawn & Garden
1/2" x 20' Rebar Grade 60 (#4) at Menards®
1/2" #4 Rebar Stakes 18" Bundle of 25 | eBay