High Quality and Safer: 12 FT 3 in 1 ABS Power Line Air Hoses Wrap Assembly (2 black air lines and 1 ABS 7 way green power cord), SAE J2394 4/12+2/10+1/8 ABS Green Cable, DOT SAE J1402A 3/8" black Air Hose, SAE J560 for Plug; Excellent electrical and thermal conductivity ensures normal use of lights (such as turn signals and brake lights) on trailers, trucks and tractors Heavy Duty and Durable: 3 in 1 design and stainless steel clip for easy installation, neat and organized; Spoon-cut spiral wrap protects air hoses and cables, is anti-twisting (prevents semi-trailer air hoses from snagging and tangling when turning) prevents abrasion and impact; Heavy duty 7 pin trailer plug is made of zinc die-cast, not easily deformed or broken, safer and more durable Reliable Connection: Heavy-duty rubber tapered handle protects air hose, red and blue handles are wide and easy to grip for quick identification and connection; The ends of the trailer wiring harness and air lines are protected by highly elastic stainless steel springs; Good elasticity can protect the semi truck air line kit well, connectors are less likely to be damaged Perfect for Extreme Weather: Rubber air hoses and green ABS outer jacket are waterproof, weather-resistant, wear-resistant, corrosion-resistant (UV and chemicals like diesel), and highly flexible to transmit power even in cold conditions as low as -85°F (-65°C); 7 way trailer plug and 1/2 inch swivel brass fittings are suitable for outdoor harsh weather and rust-proof Service: PlugSaf 3 in 1 Air Power Line 12ft is widely used in various brands of semi trucks trailers tractors; Your satisfaction is our greatest pursuit, if you encounter problems during use, you can always contact us High Quality and Safer: 12 FT 3 in 1 ABS Power Line Air Hoses Wrap Assembly (2 black air lines and 1 ABS 7 way green power cord), SAE J2394 4/12+2/10+1/8 ABS Green Cable, DOT SAE J1402A 3/8" black Air Hose, SAE J560 for Plug; Excellent electrical and thermal conductivity ensures normal use of lights (such as turn signals and brake lights) on trailers, trucks and tractors Heavy Duty and Durable: 3 in 1 design and stainless steel clip for easy installation, neat and organized; Spoon-cut spiral wrap protects air hoses and cables, is anti-twisting (prevents semi-trailer air hoses from snagging and tangling when turning) prevents abrasion and impact; Heavy duty 7 pin trailer plug is made of zinc die-cast, not easily deformed or broken, safer and more durable Reliable Connection: Heavy-duty rubber tapered handle protects air hose, red and blue handles are wide and easy to grip for quick identification and connection; The ends of the trailer wiring harness and air lines are protected by highly elastic stainless steel springs; Good elasticity can protect the semi truck air line kit well, connectors are less likely to be damaged Perfect for Extreme Weather: Rubber air hoses and green ABS outer jacket are waterproof, weather-resistant, wear-resistant, corrosion-resistant (UV and chemicals like diesel), and highly flexible to transmit power even in cold conditions as low as -85°F (-65°C); 7 way trailer plug and 1/2 inch swivel brass fittings are suitable for outdoor harsh weather and rust-proof Service: PlugSaf 3 in 1 Air Power Line 12ft is widely used in various brands of semi trucks trailers tractors; Your satisfaction is our greatest pursuit, if you encounter problems during use, you can always contact us