Brand: Concave Hair RodsDiameter: 1-1/8" Length: 3-1/8"* Non-Slip* Wraps Faster and Easier* Great Size for Long Hair* Flow Through Design for Even Saturation* 6 Rods per Bag• Green Jumbo Concave Perm Rods * 1-1/8" Diameter x 3-1/8" Long• Non-slip• Wraps faster & easier / Great design for long hair• Flow through design for even saturation• 6 rods per bag