Setobrick

LEGO part 30151b: Brick Round 2 x 2 x 1 2/3 Dome Top, Hollow Stud

Bricks Round and Cones4 colours172 sets

LEGO part LEGO part 30151b: Brick Round 2 x 2 x 1 2/3 Dome Top, Hollow Stud

Specifications

Reference30151b
CategoryBricks Round and Cones
MaterialABS plastic
Colours4
Sets172
Listed pieces236
First appearance2012
Latest appearance2026
Element (Trans-Clear)6514278 · 6286876
Most common colourTrans-Clear
SetopediaData: Rebrickable
Spec sheet updated on 2026-09-29

LEGO part 30151b, Brick Round 2 x 2 x 1 2/3 Dome Top, Hollow Stud, belongs to the Bricks Round and Cones category. It exists in 4 colours and appears in 172 sets of our database, from 2012 to 2026, for a total of 236 listed pieces. Its most common colour is Trans-Clear.

Number 30151b identifies the shape and is moulded under the part. Each colour also has its own element ID, the one Pick a Brick uses: in trans-clear, it is 6514278.

Part 30151b through the years

The oldest set in our database that contains part 30151b is 3315 Olivia's House, released in 2012 in the Friends 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 2025, with 20 sets containing it. The set with the most copies is 910009 Modular LEGO Store: 20 copies, against an average of 1.4 per set.

It is spread across several themes, led by Friends (27%), Disney (10%) and Harry Potter (8%). With 172 sets, it ranks no. 802 of 2,731 parts in our database and no. 22 of 78 in the Bricks Round and Cones category.

Sets containing part 30151b, by period

PeriodSets
2012-201968
2020-2026104

Colours of part 30151b

Its rarest colour, glitter trans-clear, appears only in set 41067 Belle's Enchanted Castle. 4 of its 4 colours are transparent.

Colour (element ID)SetsPiecesExample sets
Trans-Clear6514278 · 6286876161217106987621860350
Trans-Bright Green6514279 · 6290270911102737525576464
Trans-Neon Green6167884 · 602175146411944119570913
Glitter Trans-Clear61503301241067

Where to buy part 30151b

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

Search part 30151b on AmazonPick a Brick (lego.com)BrickLink entryRebrickable entry

Sets that include part 30151b

Sets ranked by popularity that include at least one part 30151b, in any colour.

Related parts

Minifigures using part 30151b

Part 30151b is used in 3 catalogued minifigure variants. Characters:

More parts in the Bricks Round and Cones category

All parts in the Bricks Round and Cones category

Frequently asked questions

How many LEGO sets include part 30151b?

Part 30151b (Brick Round 2 x 2 x 1 2/3 Dome Top, Hollow Stud) appears in 172 sets listed on Setopedia, from 2012 to 2026, in any colour.

Which LEGO set contains the most copies of part 30151b?

Set 910009 Modular LEGO Store, released in 2022, contains 20 copies, the highest count in our database. On average, a set containing part 30151b has 1.4.

Which colours does LEGO part 30151b come in?

4 colours are listed for part 30151b. The most common is Trans-Clear, found in 161 sets.

What is the rarest colour of part 30151b?

According to our inventories, it is glitter trans-clear, found in only 1 set (41067 Belle's Enchanted Castle).

What is the element ID of part 30151b in trans-clear?

In trans-clear, part 30151b has element ID 6514278 or 6286876. Number 30151b is the mould number, the same for every colour.

Is LEGO part 30151b 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 30151b individually?

Single parts 30151b 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.