Supereyes N014 3.5" Monitor Videoscope 9MM Diameter 500MM Waterproof Snake Tube Borescope Endoscope LED Inspection Camera with Micro SD Memory Option Exclusive MANUAL FOCUS borescope. Tube diameter: 9mm. Tube length: 500 mm. Big 3.5 monitor for instant view. Micro SD card slot available for memory storage. It has built-in adjustable LED lights on camera head to illuminate the inspection area. Snapshot and video recording function. Max photo size: 640 X 480. Max video size: 640 X 480. The flexible camera is waterproof (6 hours submerged in 27 water); you can inspect objects under water, gaps and holes.