0.38-in x 10-ft Black Steel #3 Rebar in the Rebar department at Lowes.com
3/8" X 18" Rebar 10/Bundle
Buy CMC PIN03N024 Rebar Pin, 3/8 in Dia, 24 in L, #3 Rebar, Steel (Pack of 100)
MAKO 3” Rebar Support Chair with Flat Base (Pack of 500) – Fits Bar Sizes 3-5 – Heavy Duty & Durable Plastic Concrete Rebar Stand Holder with Snap-in Mount (color may vary) - - Amazon.com