it's compatiable with seayang brand-H37L1/H35SP1/SH37L(M45)/SH37LN/SM45C series Micro Motor Handpiece.

Replace Electric Motor Carbon Brushes Brand New

Condition:A brand new, unused, unopened, undamaged item in
its original packaging.
Matrial:carbon+metal

Package include:
10pcs=5 pairs carbon brushes
20pcs=10 pairs carbon brushes
40pcs=20 pairs carbon brushes