instead of the usuall 4 piece kit, which includes: 2 small neon tubes ( 1 in front and 1 in the back ) and 2 larger neon tubes (1 on each side of your vehicle. Hotglow has made a 6 piece kit which consists of 6 - 32" neon tubes: 1 for front and 1 for back and 2 smaller ones on each side of vehicle, for the reason that the larger tubes break more easily and does not fit each car. By installing 2 smaller tubes, decreases the chance of breakage and increase fitment on cars.