All terminals and connectors are constructed of copper and electro-tin plated to ensure maximum electrical conductivity after crimping. The insulation sleeve provides good dielectric strength and withstands the pressure of crimping. Strip wire insulation and crimp connector barrel with a wire crimper. - Color: As shown - Material: Brass + PVC - Size: 20.5 x 11 x 3 cm - Red connector: 0.5–1.0 mm - Blue connector: 1.5–2.5 mm Various connectors – Package includes 360 insulated terminals and connectors in the most commonly used sizes. Standard materials – Brass + PVC. Used for electrical repair – A handy assortment of terminals and connectors included for quick electrical repairs. Complete set – Includes all necessary components for solderless electrical repairs at home, in the shop, or outdoors. Wide application – Includes butt, ring, spade, and quick disconnect connectors in this multi-application set. Suitable for household, vehicle, and other electrical crimping needs. Find the right connectors for all your electrical wiring projects. Packing list: 40 x Ring (20 pcs Red + 20 pcs Blue) 40 x Ring M5 (20 pcs Red + 20 pcs Blue) 40 x Ring (20 pcs Red + 20 pcs Blue) 40 x Bullet Male (20 pcs Red + 20 pcs Blue) 40 x Bullet Female (20 pcs Red + 20 pcs Blue) 40 x Spade 250 Male (20 pcs Red + 20 pcs Blue) 40 x Spade 250 Female (20 pcs Red + 20 pcs Blue) 40 x Spade 250 Female (Fully Insulated) (20 pcs Red + 20 pcs Blue) 40 x Butt Splice (20 pcs Red + 20 pcs Blue)