brand new and high quality Features: 1. Can be applied to electrical experiment for midlle school, technical secondary school and other proper situations. 2. Suitable for verifying parts of Ohm's law. 3. Can be used to measure unknown resistance. 4. Can serve as great teaching and exprimental equipment. 5. for Ideal for adjusting current in need in the way of entering to a circuit as a known resistance. Specification: Material: Iron Type: Resistance Box Color: Black Resistance Obtainable: 0 ohm to 9999.9 ohm Size: 14 x 10 x 5cm(5.51 x 3.94 x 1.97in) Quantity: 1 Pc Note: 1. Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1 x Resistance Box