Features: 100% brand new and high quality. All of these resistors are adjustable so get this set and you will have a huge range of potentials. There are total 50 pieces variable resistors that you can use so you do not have to worry about running out for quite a while. Small size, convenient and easy to use. This set of potentiometers would be a great collection for you to have for building electronics projects. Specification: Model: WH148 B1MK 15mm Type: Single Purpose: Precision Materials: Synthesis Performance: Threaded rod driven Resistance Adjust Mode: Rotary Resistance Change Mode: X (linear) Nominal Resistance: 100K Resistance Allowable Deviation: ±10% Slide Noise: Standard Resolution: Standard Zero Resistance: Standard Contact Resistance: Standard Isolation Resistance: Standard Conformity: Standard Weight: 350g / 12.3oz (approx.) Package list: 50 * Potentiometers (with Washers and Nuts) 1、100% brand new and high quality. 2、All of these resistors are adjustable so get this set and you will have a huge range of potentials. 3、There are total 50 pieces variable resistors that you can use so you do not have to worry about running out for quite a while. 4、Small size, convenient and easy to use. 5、This set of potentiometers would be a great collection for you to have for building electronics projects.