Hi everybody, i’m totally new on blender and need some help. How i can remove or hide this triangles with bubbles?
Those are bones within an armature. Without sharing the blend file, it is impossible to understand what you’ve got going on. Simplest fix, without breaking an armature that might be controlling the character, is to go into edit mode on the armature, then select the bones you don’t want to see and press H to hide them.
If you want a better solution than that upload a blend file so we can see what’s going on. You can upload here… http://pasteall.org/blend No email, account or login needed. Just post back here with the link to the page it creates for your file.
EDIT: I just checked and the fix I proposed doesn’t work. If you set the pivot point to “individual origins” the bones can be scale down in edit mode. Or you can select them and use M to move them to an armature layer that is hidden.