EasyFit SilkGel from DeVilbiss Overhead Tubing Anchoring Strap . The overhead tubing anchor is designed to keep the tube securely strapped at the top of your head, giving you the freedom to move without compromising your seal. . Key Features . Provides Secure Tube Support . Freedom of Movement . Reviewers Tip: . The overhead strap anchoring strap is designed for the EasyFit SilkGel headgear from DeVilbiss. . FAQ . Does this overhead anchor work with the Full Face Interface and the Nasal Interface . Yes it does work with both versions of the EasyFit SilkGel