Note Installation.

Stainless steel ball is easy to fall.

Length have 1 ~ 2mm deviation.

Sliding Block + 400mm Linear guide this item include:

1Pcs MGN12 - L400mm linear rail

1Pcs MGN12H carriage

Sliding Block + 550mm Linear guide this item include:

1Pcs MGN12 - L550mm linear rail

1Pcs MGN12H carriage