Versatile Use: Ideal for automotive, home, and scientific applications, these insulated butt splice connectors ensure reliable wiring connections for occasional or regular projects. Premium Construction: Crafted from high-quality Copper and PVC, these connectors are tin-plated for enhanced conductivity and corrosion resistance, Assorted Sizes: The kit includes 85 pcs for 22-16 AWG wires (Red), 75 pcs for 16-14 AWG wires (Blue), and 40 pcs for 12-10 AWG wires (Yellow), catering to a variety of wire gauges. Innovative WIRE-STOP Design: This feature ensures precise wire insertion, facilitating correct placement and securing effective crimping, which enhances the overall safety and integrity of your electrical connections. Note: The style of plastic box is random, no specified style is accepted Colour:Red&Blue&Yellow Material:Plastic + Copper Package Contents: 200 x insulated tube terminals 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.