A. New items B. Material: Zinc alloy C. Dimension information: - Dimension A: The length is about 3.8 cm, and the diameter is about 1.8 cm, with an error of approximately 1 cm. - Dimension B: The length of the lock core is about 3.2 cm, and the diameter is about 2.5 cm; the iron plate is about 4.5 cm long and about 1.5 cm wide; the hexagon is about 2.5 cm long and about 2.5 cm wide, with an error of approximately 1 cm. - Dimension C: The total length is about 13.8 cm, with an error of approximately 1 cm. - Dimension D: The diameter is about 4 cm, and the height is about 3 cm; the iron sheet is about 5.5 cm long and about 1.8 cm wide, with an error of approximately 1 cm. D. Unit conversion: 1 inch = 2.54 cm, 1 cm = 0.393 inches E. Warm tips: - Due to factors such as lighting effects and monitor brightness/contrast settings, the color tone of the website photos may differ slightly from the actual items. - The item dimensions are measured manually, and there may be an error of about 1 cm. Please understand.