The heat shrink butt connectors are very convenient and practical, with excellent texture, and can serve you long without being easily . Made of sturdy materials, of multiple uses, can be used for car, marine, home electrical appliances and so on. Features -Color:Assorted Color -Material:Copper -Size:3.50X0.80X0.80cm/1.38X0.31X0.31in -Size:3.10X0.80X0.80cm/1.22X0.31X0.31in -Size:2.90X0.80X0.80cm/1.14X0.31X0.31in -Operating temperature: -55 degree centigrade~125 -Start shrinkage temperature: 80 degree centigrade -Minimum full shrinkage temperature: 130 degree centigrade -Specification: 12-10 AWG, 4-6mm², 48A(yellow type); 16-14 AWG, 1.5-2.5mm², (blue type); 22-16 AWG, 0.5-1.5mm², 19A(red type) - Applicable to automobile, home, marine, electrical, electronic industry, to satisfy your requirements. - Can hold the wire tight after being crimped, hard for wire to come out of the connector. - The reasonable structure design helps you to insert wire into the right place to ensure the effect of crimping. - Using sturdy materials, these heat shrink spade connectors are safe and can be used for long term. - With detailed workmanship, light weight, compact size, easy to use and store, can provide you better service. Package list: terminals