diff --git a/src/main/java/lol/vera/spigot/knockback/KnockbackProfile.java b/src/main/java/lol/vera/spigot/knockback/KnockbackProfile.java
index 7f01a88..e3ba8fa 100644
--- a/src/main/java/lol/vera/spigot/knockback/KnockbackProfile.java
+++ b/src/main/java/lol/vera/spigot/knockback/KnockbackProfile.java
@@ -4,9 +4,13 @@ public interface KnockbackProfile {
 
     String getName();
 
-    double getFriction();
+    double getHorizontalFriction();
 
-    double getVertical();
+    double getVerticalFriction();
+
+    double getVerticalMin();
+
+    double getVerticalMax();
 
     double getHorizontal();
 
@@ -40,6 +44,7 @@ public interface KnockbackProfile {
 
     Integer getPotionTicks();
 
+
     void setName(String name);
 
     void setFriction(double friction);
@@ -78,4 +83,8 @@ public interface KnockbackProfile {
 
     void setPotionTicks(Integer potionTicks);
 
+    void setVerticalMin(double verticalMin);
+
+    void setVerticalMax(double verticalMax);
+
 }
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