All terminals and connectors are constructed of copper, and are tin-plated to ensure maximum electrical conductivity after crimping. Insulation sleeve provides good dielectric strength and withstands the pressure of crimping. Strip wire insulation, crimp connector barrel with a wire . Feature - Color: As Shown. - Material: Brass+PVC. - Size: 20.5 x 3cm. - Red connector: 0.5-1.0mm. - Blue connector: 1.5-2.5mm. - Various Connectors - Package comes with 360 insulated terminals and connectors in the most commonly used sizes. - Standard Materials - Brass + PVC. - Used For Electrical handy assortment of terminals and connectors included for quick electrical repairs. - A Complete Set - Comes with all you need to make solder less electrical repairs around the home, shop or outside. - Wide Use: Butt, Ring, Spade, Quick disconnect are included in this multi application set. Electrical crimp connectors for household, vehicle and more. Here you will find the right connectors for all your electrical wiring projects. Package list: Ring (20pcs Red + 20pcs Blue) Ring M5 (20pcs Red + 20pcs Blue) Ring (20pcs Red + 20pcs Blue) Male (20pcs Red + 20pcs Blue) Female (20pcs Red + 20pcs Blue) Spade 250 Male (20pcs Red + 20pcs Blue) Spade 250 Female (20pcs Red + 20pcs Blue) Spade 250 Female (Fully Insulated) (20pcs Red + 20pcs Blue) Butt Splice (20pcs Red + 20pcs Blue)