Product name: potentiometer; resistance value: 500 kΩ; power: 1/2 W. Adjustment type: top adjustment;Type: single linear (type B);Feature: knurled shaft Shaft diameter: 6mm/0.23in; Shaft length: 13mm/0.51"; Mounting Hole: 7.5mm/0.29" Base Height: 7mm/0.27"; Base Diameter: 16mm/0.62"; Material: metal with electronic parts. Weight: 36 g Features: 500 kOhm, 1/2 W power, 3 terminals, single in-line (Type B), fits most standard knobs. Top adjustment type and knurled shaft for comfortable operation in daily use. Main used to control electrical devices such as audio equipment volume controls. Package content: 5 x Potentiometers Only the above package content, other products are not included. Note: light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The allowable measurement error is +/- 1-3 cm.