diff --git a/docs/en/atom/atomic_step_motor.md b/docs/en/atom/atomic_step_motor.md
index 5eb6c74a..7fe7326a 100644
--- a/docs/en/atom/atomic_step_motor.md
+++ b/docs/en/atom/atomic_step_motor.md
@@ -21,6 +21,8 @@
 - 1x ATOM Lite
 - 1x Atom Step Motor
 - 1x Type-C Cable(20cm)
+- 1x M2*8 Screw
+- 1x Hex key
 
 ## Applications