- Color: Black- PA66 material- Voltage: DC30V / 0.3A- With screw thread- Inner diameter: 2.1mm- Suitable for DC power supply & electronics DIY Dimensions: 0.55 in x 0.55 in x 0.67 in (1.4 cm x 1.4 cm x 1.7 cm)Weight: 0.99 oz (28 g)