Third space endoscopy, also known as submucosal endoscopy, has continued to evolve and expand as a minimally invasive alternative to surgery for the management of various GI diseases. Safe and effective endoscopic mucosal defect closure during many of these procedures is crucial. Conventional through-the-scope (TTS) clips are the most used devices for defect closure given the familiarity and ease of use.1 However, large mucosal defects can be difficult to close by using conventional TTS clips alone, given the inherent restrictions in clip opening width and inability to approximate large gaps firmly and securely.