There are several ways to download photos and videos from Instagram, but remember that it must be consistent with Instagram's terms of use and respect copyright. Let's take a look at a few online services for downloading photos and videos from Instagram, along with their brief descriptions:

InstaDownloader: A simple and popular online service that allows you to download photos and videos from Instagram.
How to use: Copy the URL of a photo or video from Instagram, paste it into the InstaDownloader website, and then click the "Download" button.

SaveFromWeb: This service supports downloading content not only from Instagram, but also from other social media platforms like Facebook and Twitter.
How to use: Paste the URL of the photo or video you want to download to the SaveFromWeb website, and click the "Download" button.

DownloadGram: It is a simple and effective service to download photos and videos from Instagram.
How to use: Copy the URL of the content from Instagram, paste it on the DownloadGram website, and then click the "Download" button.

GramSave: This service allows you to download photos and videos from Instagram with ease. It also gives you the option to choose the video quality before downloading.
How to use: Paste the URL of the content in the box on the GramSave website and click the "Download" button.

Insta-Downloader.net: This online service promises easy and fast downloading of Instagram photos and videos without the need for registration.
How to use: Copy the URL of the photo or video, paste it on the Insta-Downloader.net website, and then click the "Download" button.

IgSaved.com: It is an online service that allows you to download photos from Instagram. It allows you to download high resolution content, and is often used by users to save photos and videos from Instagram.

Using online service:

1) Open Instagram and navigate to the photo or video you want to download.

2) Click on the "Three Dots" (triplet) icon in the upper right corner of the photo or video.

3) Select Copy Link. This will copy the URL of the photo or video to the clipboard.

4) Open your browser and go to the website of an online service to download content from Instagram. One such popular service is IgSaved.com, but there are other similar services.

5) Paste the copied URL of the photo or video into the appropriate field on the website.

6) Click on the Download button or similar to start the download process.

7) Wait for the service to process the request and provide you with a link to download the content.

Click the download link and the file will be downloaded to your device.