Description: The adjustable characteristic makes it can be used as a fixed value resistor or as a variable value resistor. High transparency allows you to see every step of your operation. Its characteristics of its changeable resistance makes it can control circuit. High-quality and strict workmanship makes it can be used for a long time. Made of metal and fireproof ABS material, it is very durable to use. The length of this product is 15.5cm, the width is 5.5cm and the height is 3.5cm. It is suitable for laboratory, physics class, science teaching, school, students and so on. Item Name: Sliding Rheostat Material: Metal,Fireproof ABS Maximum Current: 2A Product Specifications: 20 Features: Adjustable, Flame Retardant, Control Circuit Size Details: Size: 15.5cm x 5.5cm x 3.5cm/6.1" x 2.17" x 1.38" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Sliding Rheostat