Teslong NTG450H is a Rigid Rifle Borescope with a 4.5inch high definition color IPS display screen.This borescope has a 26inch rigid camera probe and a 0.2inch diameter camera, which make it easy to access into any .22 and larger caliber barrel.With a detachable side-view mirror ,users can check the wall of the rifle barrel, or remove it to check the firing point.The snapshot and recording functions are supported, photos and videos can be saved on Micro-SD memory card.