A media kit should help an advertiser understand the topic, audience, verified metrics, and terms of cooperation. For a first document, one clear page is enough. A large number of subscribers without a period and source does not replace a description of who the channel is useful for.

Training sample
Let's imagine a fictional channel, "Walking Around the City." The topic is short city routes. The reader is looking for weekend walks and places for family recreation. In the document you can write: "Median views of ten regular posts after 48 hours; period 1–14 September." The number of views is inserted from your own verified export, not from this example.
In the media kit builder fill in the name, topic, benefit for the reader, and period. Add the source of the statistics and the date of verification. If the audience's geography is unknown, state that as well; the presence of a city name in the topic does not prove the place of residence of all subscribers.
Offer to the advertiser
Describe the available format: for example, a separate post with the client's materials, approval, and a specific placement date. State your own price, the number of revisions, the deadline for receiving materials, and a contact. This is a training offer structure, not a market price list.
Do not promise a specific number of sales based on past views. Paid promotion and organic interest should be considered separately. To compare the numbers, checking media kit metrics will be useful.
Export and final check
Click "Save PDF / print" and select PDF in the browser window. Look through all the pages: long terms may take up more than one sheet. For a short version, you can download a PNG; if the text does not fit entirely, the builder will suggest shortening it or using PDF.
Open the resulting file on your phone and check the contact, period, completeness of the terms, and the absence of training placeholders. Name the file with the version date. The document is created on the device and is not itself published on the internet. When the metrics change, save a new version so that the advertiser does not compare different periods as one.
If a separate public announcement in Telegram has been prepared for this work, you can check the current view terms. Creating a media kit is free; the terms of cooperation with the advertiser are agreed separately. Purchased activity does not confirm organic interest, recommendations, requests, or sales.