Ultimate Trident motion kit features black pulleys for that sleek stealth look. 

Including the following items:

• Gates GT2-6mm belt 6 meters
• HB Black GT2-6 20T 5mm bore timing pulley x 3
• HB Black GT2-6 20T toothed idler pulley 5mm bore x 2
• HB Abec 3 F695 bearing x 20
• HB GE5C Spherical bearing x 3 
• 5x30mm shaft x 1