With our environmentally friendly refillable cartridge, you no longer have to buy a new cartridge every time you run out of filament, but you can buy our refill filaments at a much lower price. You can simply replace the coil and chip inside the cartridge (the coil can be replaced with any color or material of your choice). With continuous use of the refill filaments, the rubber roll of the cartridge can wear out. In that case, buy a new refillable cartridge.
Note: Only filaments certified by Sindoh can be used.