diff --git a/fury/actor.py b/fury/actor.py
index d35f765e3..0d3976ecf 100644
--- a/fury/actor.py
+++ b/fury/actor.py
@@ -15,6 +15,43 @@ def sphere(
     material='phong',
     enable_picking=True
 ):
+    """
+    Visualize one or many spheres with different colors and radii.
+
+    Parameters
+    ----------
+    centers : ndarray, shape (N, 3)
+        Spheres positions.
+    colors : ndarray, shape (N, 3) or (N, 4) or tuple (3,) or tuple (4,)
+        RGB or RGBA (for opacity) R, G, B, and A should be in the range [0, 1].
+    radii : float or ndarray, shape (N,)
+        Sphere radius. Can be a single value for all spheres or an array of radii for each sphere.
+    phi : int, optional
+        The number of segments in the longitude direction. Default is 16.
+    theta : int, optional
+        The number of segments in the latitude direction. Default is 16.
+    opacity : float, optional
+        Takes values from 0 (fully transparent) to 1 (opaque). Default is None (fully opaque).
+    material : str, optional
+        The material type for the spheres. Options are 'phong' (default) and 'basic'.
+    enable_picking : bool, optional
+        Whether the spheres should be pickable in a 3D scene. Defaults to True.
+
+    Returns
+    -------
+    mesh_actor : Actor
+        A mesh actor containing the generated spheres, with the specified material and properties.
+
+    Examples
+    --------
+    >>> from fury import window, actor
+    >>> scene = window.Scene()
+    >>> centers = np.random.rand(5, 3)
+    >>> colors = np.random.rand(5, 3)
+    >>> sphere_actor = actor.sphere(centers, colors, radii=0.5)
+    >>> scene.add(sphere_actor)
+    >>> # window.show(scene)
+    """
 
     scales = radii
     directions = (1, 0, 0)
diff --git a/fury/material.py b/fury/material.py
index 07bef9913..34f8261b0 100644
--- a/fury/material.py
+++ b/fury/material.py
@@ -2,11 +2,30 @@
 
 
 def _create_mesh_material(
+
         material='phong',
         enable_picking=True,
         color=None,
         opacity=1.0):
+    """
+    Create a mesh material.
+
+    Parameters
+    ----------
+    material : str
+        The type of material to create. Options are 'phong' (default) and 'basic'.
+    enable_picking : bool
+        Whether the material should be pickable in a scene. Defaults to True.
+    color : tuple or None
+        The color of the material, represented as an RGBA tuple. If None, the default color is used. Defaults to None.
+    opacity : float
+        The opacity of the material, from 0 (transparent) to 1 (opaque). Defaults to 1.0.
 
+    Returns
+    -------
+    gfx.MeshMaterial
+        A mesh material object of the specified type with the given properties.
+    """
     if material == 'phong':
         return gfx.MeshPhongMaterial(
             pick_write=enable_picking,