Setobrick

LEGO part 3957a: Antenna 1 x 4 with Rounded Top

Bars, Ladders and Fences22 colours535 sets

LEGO part LEGO part 3957a: Antenna 1 x 4 with Rounded Top

Specifications

Reference3957a
CategoryBars, Ladders and Fences
MaterialABS plastic
Colours22
Sets535
Listed pieces1,457
First appearance1995
Latest appearance2018
Most common colourWhite
Main themesStar Wars, Creator, Town
SetopediaData: Rebrickable
Spec sheet updated on 2026-09-29

LEGO part 3957a, Antenna 1 x 4 with Rounded Top, belongs to the Bars, Ladders and Fences category. It exists in 22 colours and appears in 535 sets of our database, from 1995 to 2018, for a total of 1,457 listed pieces. Its most common colour is White.

Number 3957a is the LEGO mould number, the one embossed under the part or inside the studs. It is the reference used by Rebrickable, BrickLink and the Pick a Brick service to name the shape regardless of colour: each shape and colour combination then gets its own element number.

Part 3957a through the years

The oldest set in our database that contains part 3957a is 6090 Royal Knight's Castle, released in 1995 in the Castle theme. No set in our database uses it after 2018, the year of 75208 Yoda's Hut. To get it today, look for older sets or buy it second-hand.

Its peak year is 1998, with 47 sets containing it. The set with the most copies is 2000430 Identity and Landscape Kit: 90 copies, against an average of 2.7 per set.

It is spread across several themes, led by Star Wars (8%), Creator (8%) and Town (8%). With 535 sets, it ranks no. 334 of 2,731 parts in our database and no. 11 of 68 in the Bars, Ladders and Fences category.

Sets containing part 3957a, by period

PeriodSets
1995-1999147
2000-2009288
2010-2018100

Colours of part 3957a

5 colours appear in only one set: trans-medium blue (4748 Ogel's Mountain Fortress), dark red (1382 Scary Laboratory), magenta (5964 Thumbelina), bright pink (5963 The Princess and the Pea) and salmon (3200 Beauty Studio). 6 of its 22 colours are transparent.

Colour (element ID)SetsPiecesExample sets
White1743687498102127744
Black14535810188609010193
Light Bluish Gray891777498101887208
Light Gray39570232801012355717191
Trans-Neon Green2792945094407593
Blue3957232547621155716092
Yellow4497183 · 3957242352714159433159
Metallic Silver4579837163210181495520212
Trans-Clear4656652 · 45143431518752087503741318
Red4280153 · 3957211372598865584556
Trans-Neon Orange4560958 · 4129565118710123617570348
Chrome Silver4143533916100188514999320
Pink4186438 · 395709814586258615808
Trans-Red6065498 · 41065207126097708156047
Reddish Brown454156446500113017030197
Tan4541563 · 4271715312476871134411
Trans-Orange422116736474547744743
Trans-Medium Blue144748
Dark Red111382
Magenta4243569115964
Bright Pink4243675115963
Salmon4107425113200

Where to buy part 3957a

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

Search part 3957a on AmazonPick a Brick (lego.com)BrickLink entryRebrickable entry

Sets that include part 3957a

Sets ranked by popularity that include at least one part 3957a, in any colour.

Related parts

Often found with part 3957a

Parts that share the most sets with part 3957a, based on set inventories.

Minifigures using part 3957a

Part 3957a is used in 6 catalogued minifigure variants. Characters:

More parts in the Bars, Ladders and Fences category

All parts in the Bars, Ladders and Fences category

Frequently asked questions

How many LEGO sets include part 3957a?

Part 3957a (Antenna 1 x 4 with Rounded Top) appears in 535 sets listed on Setopedia, from 1995 to 2018, in any colour.

Which LEGO set contains the most copies of part 3957a?

Set 2000430 Identity and Landscape Kit, released in 2013, contains 90 copies, the highest count in our database. On average, a set containing part 3957a has 2.7.

Which colours does LEGO part 3957a come in?

22 colours are listed for part 3957a. The most common is White, found in 174 sets.

What is the rarest colour of part 3957a?

According to our inventories, it is dark red, found in only 1 set (1382 Scary Laboratory).

Is LEGO part 3957a still used in recent sets?

Not in our database: its last set dates from 2018 (75208 Yoda's Hut). Look for it in second-hand sets or on BrickLink.

Where can I buy LEGO part 3957a individually?

Single parts 3957a 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.

How do I identify a LEGO part number?

The mould number is embossed under the part or inside the studs. For the Antenna 1 x 4 with Rounded Top, it is number 3957a, shared by all its colours.