Fits 1971-1977 Triumph TR7 V8 engines.
 
This 4 piece set contains;
      2) Spark Plug Wire Holder for 4 Wires &
      2) Spark Plug Wire Holders for 2 Wires.
 
Available for 7mm, 7.5mm, 8mm, 8.5mm wires in your choice of Black, Blue, Red or Silver. Not a universal fit that either crimp your wires or are loose and fall off or don't stay in place, but each size is made in the correct size to fit properly.  
 
Our Spark Plug Wire Components are made from Glass infused Nylon.
 
Why Nylon? Nylon holds up to under hood temperatures as well as ABS but does not degrade when exposed to chemicals like ABS.