1/2 in. x 20 ft. #4 Rebar 5910040 - The Home Depot
4 Rebar - 1/2" - Grade 40 | CarrollConstSupply
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
Rebar #4 - 1/2”x20' | Bee Green Recycling & Supply, Oakland CA
0.5-in x 4-ft Black Steel #4 Rebar in the Rebar department at Lowes.com