SNAP & LOCK FEATURE: No more wire tying. Set-up rebar with ease with our snap and lock design that installs the rebar in seconds! Compatible with rebar sizes #3, #4, and #5. Can hold up to 2 rebar each. PROVIDES STRUCTURAL SUPPORT: Holds your rebar or wire mesh at the correct (desired) depth within the concrete, which is important for the overall strength and stability of the structure. WON'T TIP OVER WHEN POURING CONCRETE! We’ve constructed these plastic rebar chairs with an extra wide and uniquely designed base for added stability when concrete is being poured on top of your rebar. DUAL HEIGHT - ELEVATES REBAR 2.5" OR 3" OFF THE GROUND: Can be used as either 2.5 inch rebar chairs (insert rebar into the lower notch) or 3 inch rebar chairs (insert rebar into the top notch). EXTREMELY HEAVY DUTY: Designed so you can step on them without breaking! We’ve constructed these rebar seats using extra thick plastic. These chairs are made from industrial grade polypropylene great for construction applications. HOLDS 2 REBAR BARS: Each rebar support chair securely supports two rebar bars, saving you time and materials compared to using single-rebar chairs. Upper notch elevates rebar 3", lower notch elevates rebar 2.5" off the ground. REBAR SIZES: Compatible with rebar sizes #3, #4, and #5. Can hold up to 2 rebar each. Secure your rebar in place when pouring concrete with our Plastic Rebar Chairs. These rebar chairs, also known as rebar stands, are extremely versatile. They're compatible with rebar sizes #3 to #5, can elevate your rebar either 2-1/2 inch or 3 inches off the ground, and hold up to 2 rebar bars at a time. These rebar chairs are so strong, you can step on them and they won’t break! This heavy duty 2.5" to 3" rebar chair is made with a wider base than our older design for added stability. It is made from an industrial grade polypropylene, so it never rusts or corrodes in concrete.