Pentax 10x50 -- worth the purchase?

Hi everyone!

Purchasing my first pair of binoculars and considering a lightly used pair of Pentax 10x50 w/ 6.5 viewing angle. I had some questions before I do!

  1. Does anyone know of the model? I cannot devise it based on the images.
  2. Fair price? The seller is asking $70.
  3. Good product? I have read a lot of good things about Pentax. Would use it mainly while backpacking to view the nature.

Thank you in advance

(Edit: added images)

https://preview.redd.it/kkrijvui4yrc1.jpg?width=720&format=pjpg&auto=webp&s=79be669305ff6e5bd41a787df948f108dc4f154a

https://preview.redd.it/hfkd80vi4yrc1.jpg?width=720&format=pjpg&auto=webp&s=0b91e47b2c5926a671e6e999b0aa135c6c2bfd68