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LEGO part 4345b: Box 2 x 2 x 2 [Hollow Studs]

Containers12 colours466 sets

LEGO part LEGO part 4345b: Box 2 x 2 x 2 [Hollow Studs]

Specifications

Reference4345b
CategoryContainers
MaterialABS plastic
Colours12
Sets466
Listed pieces651
First appearance1995
Latest appearance2026
Element (Light Bluish Gray)4211491
Most common colourLight Bluish Gray
Main themesCity, Friends, Star Wars
SetopediaData: Rebrickable
Spec sheet updated on 2026-09-29

LEGO part 4345b, Box 2 x 2 x 2 [Hollow Studs], belongs to the Containers category. It exists in 12 colours and appears in 466 sets of our database, from 1995 to 2026, for a total of 651 listed pieces. Its most common colour is Light Bluish Gray.

Number 4345b identifies the shape and is moulded under the part. Each colour also has its own element ID, the one Pick a Brick uses: in light bluish gray, it is 4211491.

Part 4345b through the years

The oldest set in our database that contains part 4345b is 6195 Neptune Discovery Lab, released in 1995 in the Aquazone theme. It is still in use: the most recent set featuring it, 71861 The Old Town 15th Anniversary, dates from 2026.

Its peak year is 2020, with 34 sets containing it. The set with the most copies is 4559 Cargo Railway: 6 copies, against an average of 1.4 per set.

It is spread across several themes, led by City (20%), Friends (18%) and Star Wars (6%). With 466 sets, it is the most widespread part in the Containers category and ranks no. 373 of 2,731 parts in our database.

Sets containing part 4345b, by period

PeriodSets
1995-199948
2000-200964
2010-2019183
2020-2026171

Colours of part 4345b

Its rarest colour, trans-clear, appears only in set 5808 The Enchanted Palace. 4 of its 12 colours are transparent.

Colour (element ID)SetsPiecesExample sets
Light Bluish Gray4211491153210104977595360262
White434501143172603374170375105
Red4261628 · 434571101119762181030860262
Black6138634 · 41432475477103084058075256
Light Gray4345021723719069794559
Trans-Neon Green4291632 · 41075061012621069157644
Yellow6146457 · 425838171360100101596441
Blue6132528 · 411424958703176010476058
Trans-Neon Orange300604757619561756155
Trans-Green410997746618061996150
Dark Turquoise638301333603301102210778
Trans-Clear4163787 · 4119520115808

Where to buy part 4345b

Setopedia shows no prices: they vary by colour, condition and seller. Amazon links are affiliate links.

Search part 4345b on AmazonPick a Brick (lego.com)BrickLink entryRebrickable entry

Sets that include part 4345b

Sets ranked by popularity that include at least one part 4345b, in any colour.

Related parts

Often found with part 4345b

Parts that share the most sets with part 4345b, based on set inventories.

More parts in the Containers category

All parts in the Containers category

Frequently asked questions

How many LEGO sets include part 4345b?

Part 4345b (Box 2 x 2 x 2 [Hollow Studs]) appears in 466 sets listed on Setopedia, from 1995 to 2026, in any colour.

Which LEGO set contains the most copies of part 4345b?

Set 4559 Cargo Railway, released in 1996, contains 6 copies, the highest count in our database. On average, a set containing part 4345b has 1.4.

Which colours does LEGO part 4345b come in?

12 colours are listed for part 4345b. The most common is Light Bluish Gray, found in 153 sets.

What is the rarest colour of part 4345b?

According to our inventories, it is trans-clear, found in only 1 set (5808 The Enchanted Palace).

What is the element ID of part 4345b in light bluish gray?

In light bluish gray, part 4345b has element ID 4211491. Number 4345b is the mould number, the same for every colour.

Is LEGO part 4345b still used in recent sets?

Yes: it appears in sets released in 2026, such as 71861 The Old Town 15th Anniversary.

Where can I buy LEGO part 4345b individually?

Single parts 4345b can be ordered on Pick a Brick (lego.com) in colours currently produced, or on BrickLink for older colours. The part is also included in the sets listed on this page.