eBay is a global online auction and shopping website that has a very wide range of customers, including people of different ages, genders, income levels, and interests. However, some of the main customer groups of eBay can be described based on some statistics and observations:

1. **Young and middle-class consumers**: There are many young and middle-class consumers on the eBay platform who seek good value for money, or unique and hard-to-find items.

2. **Used goods buyers**: eBay is well known for its wide selection of used goods, attracting many buyers who are looking for bargains or specific used goods.

3. **Collectors and enthusiasts**: eBay has special categories for collectibles, including stamps, coins, art, antiques, etc., which attract many collectors and enthusiasts.

4. **Small business owners and entrepreneurs**: eBay is also a popular online sales platform, and many small business owners and entrepreneurs use eBay to sell goods, thus also constituting an important customer group.

5. **International Buyers**: Since eBay is an international platform, it attracts buyers from all over the world, including those seeking cross-border shopping and international goods.

6. **Housewives and Professionals**: The wide variety of goods on eBay, from daily necessities to professional equipment, attracts housewives and professionals looking for a variety of goods.

7. **Technology Enthusiasts**: eBay has a large number of electronic products and accessories, attracting technology enthusiasts and professionals looking for the latest technology products and accessories.

8. **Fashion and Beauty Enthusiasts**: eBay also offers clothing, footwear, jewelry, and beauty products, attracting many fashion and beauty enthusiasts.

eBay's customer base is very diverse, which gives it a large user base around the world. Different customer groups look for different goods and services on eBay, and eBay meets these different needs through the flexibility of its platform and its wide selection.