Some things just wear out. Should you need a spare bolt and elastic bands for the NCF LT models, these are the spares.
The band pack comes in two sizes. The 1.5 band pack is best for seatposts with a depth between 32-45mm. The 2.0 band pack is best for aero seatposts with a depth between 45-60mm.
Two elastic bands
One 4mm socket head bolt
One #8 nylon lock nut