Features:Practical and Neat; - The voltage range of the connector is solid 0.08-2.5mm2 / 28-14AWG. They 't mess up the wire ends nearly as often, keep electrical boxes relatively roomy, and 't have to twist a handful of copper wire together. Reusable and efficient; - Suitable for flexible wires and hard wires. Each connector is designed with for different wires. and different diameters can be connected for safety. Size: 0.24x0.38x0.35 in Weight: 0.8g/pc Colour:black Material:plastic Package Contents: 40 x Track Lighting Connectors Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.