# LEGO Fill Your Own 1-Litre Bag (4521-1) — resale value

**LEGO Fill Your Own 1-Litre Bag (4521-1)** — resale value from real closed eBay sales.

Values are medians of real closed eBay sales, updated 2026-06-23. They are estimates for reference, not offers or appraisals — condition, completeness and edition move them a lot, so compare against the sold listings before pricing anything.

## Check the market

- [Sold listings on eBay](https://junkpal.ai/api/go?to=https%3A%2F%2Fwww.ebay.com%2Fsch%2Fi.html%3F_nkw%3DLEGO%25204521-1%2520Fill%2520Your%2520Own%2520Bag%26LH_Sold%3D1%26LH_Complete%3D1%26mkcid%3D1%26mkrid%3D711-53200-19255-0%26siteid%3D0%26campid%3D5339166094%26toolid%3D10001%26mkevt%3D1%26customid%3Dmd-sold&p=md-sold) — the closed sales these medians are computed from
- [Live listings on eBay](https://junkpal.ai/api/go?to=https%3A%2F%2Fwww.ebay.com%2Fsch%2Fi.html%3F_nkw%3DLEGO%25204521-1%2520Fill%2520Your%2520Own%2520Bag%26mkcid%3D1%26mkrid%3D711-53200-19255-0%26siteid%3D0%26campid%3D5339166094%26toolid%3D10001%26mkevt%3D1%26customid%3Dmd-live&p=md-live) — what sellers are asking right now

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## Details

| Field | Value |
| --- | --- |
| Brand | LEGO |
| Set Number | 4521-1 |
| Theme | Other |
| Year | 2004 |
| Pieces | 0 |

## FAQ

**Is the LEGO Fill Your Own 1L Bag (4521-1) still in high demand?**

As a 2004 "Other" themed item, it appeals to collectors interested in vintage or unique LEGO releases.

**Does this set contain any actual LEGO pieces?**

No, according to the set information, this item has 0 pieces.

**What is the general condition to expect for this 2004 set?**

The listing details do not specify the condition, but its age suggests it is a vintage item.

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Full price guide: https://junkpal.ai/products/lego-4521-1
How these values are computed: https://junkpal.ai/methodology
Cite as: "JunkPal price guide value as of 2026-06-23, based on real sold listings (junkpal.ai)"