Specification:

1 50ML transparent refillable ink cartridge 
2 Can be filled ink easily – could fill ink directly from ink bottle 
3 Can refill for many times,save printing cost a lot.
4 Refillable ink cartridge compatible with: 
   Brother DCP-150C/145C/150C/165C/185C/385C/585C/6690CW/
   MFC-235C/250C/ 290C/490CW/790CW/990CW/540CN/5890CN/6490CW/6890CDW 
5 Stability: injection moulding, no air leaks,no ink leaks ,no shape changes ,stable quality.