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.

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

Name: LEGO Fill Your Own 1-Litre Bag (4521-1)
Brand: LEGO

Other

Other · 2004

Theme · OtherPieces · 0Set Number · 4521-1Year · 2004

Used

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New / Sealed

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Live on eBay now

Converted from USD at the ECB reference rate — sold comps are US-market sales.

JunkPal AI· resale insightanalyzing sold comps…

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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.