Description: Model: ER11A Material: High Carbon Steel Size(Length x Open): Approx. 12.3x1.5cm/ 4.84x0.59 inch For ER Lathe Clamping Nut Harden, wearproof, and durable, with skidproof cover Specification: Wrench Color: Black Cover Color: Red Package Includes: 1 Piece of ER Wrench Spanner