1、EXCELLENT MATERIAL: Female and male terminals are made of brass plating, insulating sleeve is made of nylon, possess high conductivity, oxidation resistant, durable enough for you to use 2、COMPATIBLE WIRE DIAMETER: 8mm type compatible wire from 0.5‑5mm² (AWG 22‑16); 8mm type compatible wire from 0.75‑5mm² (AWG 18‑14); 6.3mm type compatible wire from 0.75‑5mm² (AWG 18‑14) 3、EASY TO USE: Just connect the male and female terminals at both ends, then connect the male and female terminals to complete the wiring easily, and disconnect when not needed 4、WIDE APPLICATION: Can be widely used in household appliances, computers, batteries for audio systems, motorcycles, scooters, cars, trucks, ships, rocker switch quick connect or disconnect, etc. 5、EASY STORAGE: Wire crimp terminal block is packed in a storage box, easy for you to store and carry, very convenient 60 x 2.8mm Spade Crimp Terminal Connector60 x 4.8mm Spade Crimp Terminal Connector60 x 6.3mm Spade Crimp Terminal Connector60 x 2.8mm Hex Crimp Terminal Connector60 x 4.8mm Hex Crimp Terminal Connector60 x 6.3mm Hex Crimp Terminal Connector180 x Insulating Sleeve(for female terminal) Item Type: Male Female Wire Spade ConnectorMaterial: Brass, aluminum, nylonColor: Gold, silver, transparent 2.8 Type: Inner Diameter: Approx. 2.8mm / 0.11in, Thickness: Approx. 0.25mm / 0.01in(male), Approx. 0.5mm / 0.02in(female), Compatible Wire: 0.5- 1.5mm² (AWG 22-16) 4.8 Type: Inner Diameter: Approx. 4.8mm / 0.19in, Thickness: Approx. 0.35mm / 0.01in(male), Approx. 0.5mm / 0.02in (female), Compatible Wire: 0.75- 2.5mm² (AWG 18-14) 6.3 Type: Inner Diameter: Approx. 6.3mm / 0.25in, Thickness: Approx. 0.4mm / 0.02in(male), Approx. 0.8mm / 0.03in(female), Compatible Wire: 0.75- 2.5mm² (AWG 18-14)Suitable For: Can be widely used in household appliances, computers, batteries for audio systems, motorcycles, scooters, cars, cars, trucks, ships, rocker switch quick connect or disconnect, etc.