Technical data: Name: ESP 21' Hardened Locking system: Friction Lock Finish: Black Ni-Zn The color of the handle: Black Kind of a handle: Type-HL (Anti-slip, Smooth) Steel grade AISI/SAE: 4130 Type of steel DIN: CK 55 The length of the baton folded: 210.0 mm / 8.27" The length of the baton unfolded: 530.0 mm / 20.87" Handle diameter: 27.0 mm / 1.06" Weight: 440.0 g / 15.52 oz Kabura: BH-54-L Manufacturer: ESP (Euro Security Products), Czech Republic