Weyerhaeuser 3/8 in. x 3 ft. #3 Rebar 05385 - The Home Depot
BULLET, #3 REBAR (1000/CTN) - ALP Supply
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