Chain Spanner & Flathead Screwdriver
The world's first portable tool specialized for tightening tiny bolts and square flat plate nuts installed on NJS certified chain joints.
FIXER is a portable tool that works as a slotted screwdriver and pliers, making it easy to check a back plate nut looseness. Easy to carry, even when road practice or long rides.
Equipped a magnet to hold the plate nut removed from the chain. It is a small but powerful neodymium magnet, so it securely holds the nut and enables you to work without losing it.
It might be a good idea to attach small emergency items to the ring together, in case of any trouble.