A monocular telescope that can be hung on the brim to see the buoy more clearly when fishing.

There is a so-called "fishing telescope" with glasses, but it adopts Galileo structure. To put it bluntly, it is a telescope with toy structure. The view is very small, which is not only not easy to use, but also prone to danger at the water's edge.

If it really doesn't work, just buy a small single tube and carry it.

Although in general, hand-held binoculars are not recommended for small units. But it seems better than you asked. Give you some advice:

1. Don't touch the small monocular telescope with variable magnification. This kind of telescope is specially used to fool novices, and its specifications are "15-35X2 1" and so on. Attract attention at an unreasonable multiple, but it can't be used when it is actually bought.

2. Don't choose some products with unreasonable specifications, such as 12X25, or 20X32. Even I personally think that 10X25 is a bad specification to some extent.

Don't choose products that call themselves "Russian", "military", "night vision" and "infrared", which is typical false propaganda.

It is suggested to search these aspects: general knowledge (basic knowledge and identification) of public optical telescopes, and some basic knowledge introduction.