Brass + Tin Plated Brass + Vinyl (PVC), Vinyl Insulation ensures excellent wire contact. Select copper and PVC materials for processing Practical Terminal Connector Wire Insulated Cord Pin: Wire Ferrules Kit could help you quickly complete the wiring, suitable for all kinds of equipment switches, batteries, cars and household, electronic components with pins etc. Complies with all electrical standards, perfect for home and automotive applications. Whether you're working on automotive wiring, a home or a science project, our Electrically Insulated Crimp Connectors everything is connected correctly. 7 Size / 1900 PCS Ferrule Terminal Kit: 7 colors, 7 sizes, meet the requirements of WAG22-10 specification wire, 1900PCS wire ferrule terminals last for numerous wiring projects. 40PCS*Yellow 10AWG 60PCS* Grey 12AWG 250PCS* Blue 14AWG 300PCS*Black 16AWG 350PCS* Red 18AWG 400PCS* Grey 20AWG 500PCS*White 22AWG Colour:P o Color Material:Copper+PVC Package Contents: 1900 x Wire Ferrules Terminals Kit Plastic box: random style, don't accept the specified 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.