This is the one I bought, they have gone up since i bought mine. It has a mirror that threads on the end to take images at 90°. For some reason I can't paste as a link.
https://www.amazon.com/Teslong-Version-Borescope-Inspection-Wireless/dp/B08GYLD5QK/ref=sr_1_8_sspa?crid=1ONNS9IVD2W2U&keywords=teslong+borescope&qid=1667827476&sprefix=teslong+bore+scope%2Caps%2C112&sr=8-8-spons&ufe=app_do%3Aamzn1.fos.18ed3cb5-28d5-4975-8bc7-93deae8f9840&psc=1
So that is a cylinder bore ?
The mirror sounds like a great idea. I needed something this summer to check a few bores more closely.
