I bought some cheap lights ( which I thought would fit nicely on my new electric skateboard build. This adapter slides onto the MBS Matrix II truck (can be a very snug fit) and holds the light in place. Three styles of adapte: Slide on for front trucks (LED is centered to truck) Slide on for rear trucks (LED is offset to make space for motor) Clamp on for rear trucks (LED is offset to make space for motor and doesn't require you to disassemble the entire drive to itall the clamp, uses 2 x M3 screws) If your hange are flipped (MBS logo faces inwards) you need to use the flipped veion (UNTESTED) The LED light itself is quite nifty, has both red and white light and is USB rechargable. Durability is unknown as I only just got them,