When I purchase bulk LEGO bricks, one of the first things I do is to tip the whole lot into a mesh bag and give them a good soak in the bath (of course, I remove all the electrical bits etc. first). This usually gets rid of most of the accululated muck etc.

However, I am concerned that the very smallest pieces will slip through the net and end up getting lost en route to the bath or even disappear down the plugh hole.

The solution is obvious: to make sure that I use a bag with small enough holes that the smallest pieces can't fit through.

What, therefore, is the smallest component that LEGO have made?

  • 7
    You may want to use a cloth bag, to be sure.
    – Joubarc
    Nov 29 '11 at 4:49

The screwdriver is also very small, but I'm not sure it beats the lever handle. Also, one could argue it has to be detached from the tools wheel first. But if you buy second-hand lots, there's a good chance it would be detached, and it would easily escape through small holes.

Screwdriver Tools wheel

Similarly, the various plumes aren't very large either:

Minifig, Plume Dragon Wing Left Minifig, Plume Dragon Wing Right Minifig Plume Small

  • 6
    I've physically compared a screwdriver to a lever. For the purposes of fitting through holes, the screwdriver is indeed slightly narrower than the base of the lever handle.
    – Kramii
    Nov 29 '11 at 16:30
  • 4
    That's what I call dedication.
    – Joubarc
    Nov 29 '11 at 16:42

One of the smallest pieces is the detachable handle on the 1 stud gear shift element.

The black part in this complete lever: 298c01 Lever Small (Complete)

4593 Lever Small

  • It is the size of a thin pencil lead. Nov 28 '11 at 16:45
  • A picture would be immensely helpful here. How thin is a thin pencil lead anyway? Nov 28 '11 at 16:48
  • A thin pencil lead (in the US at least) is 0.5-0.7mm. The handle is much thicker than that.
    – user23
    Nov 29 '11 at 14:13

I had guessed that smallest piece I have owned is one of these (image courtesy peeron):

Minifig Accessory Helmet Floodlight

It really is stupidly small (so small that I've lost the only example that I possessed).

However, I have since discovered that the lever weighs less, and that the screwdriver will fit through smaller holes.

Update: I've recently come across some of these:

Insect antenna

It's an antenna from the Twitch minifig in set 7599: Garbage Truck Getaway. They're pretty small.

  • 1
    I had no idea that even existed.
    – Joubarc
    Nov 29 '11 at 17:19
  • 4
    It comes with the Starwars Clone Troopers, along with a "rangefinder" type piece as well. It's a "headlamp" that attaches to a clones helmet. Rangefinder can be seen here: peeron.com/inv/parts/x1910 has a wider end than the screwdriver Nov 29 '11 at 19:55
  • 1
    I have one of these and wondered what it was. With four kids in the house, I suspect I won't have it for too much longer... :/
    – retracile
    Dec 1 '11 at 2:16
  • @Zhaph-BenDuguid LEGO aren't distributing those pieces with the newer ARC trooper gear
    – shea
    Feb 22 '13 at 2:50
  • @bungeshea Yeah, it looks like they're just using the "targeting scope" and visor options - for example in 9488 Feb 22 '13 at 9:58

Minifigure hands are very small:

(picture not to scale)


The treasure coin (70501):

coins on sprue

I think its one of if not the only element that doesn't connect to any other element.

  • 1
    Nice! That's certainly a tiny one. Welcome to Bricks.SE!
    – jncraton
    Apr 3 '18 at 20:07
  • There are many other pieces that can't connect, for example all kinds of balls (football, basketball, Bionicle, NXT). Or if we are willing to stress the definition of "connect", then a minifigure hand can grab two of these coins :)
    – zovits
    Dec 19 '19 at 7:03

I've always thought those flat, round 1x1 pieces were the smallest sphere-esque shape. Most of the other pieces here are longer in at least one dimension than these guys.

This is probably the smallest LEGO brick that is compatible with a stud/tube connection.

There's a version with a hole in the stud that is 'smaller' in that it weighs less, although the external dimensions are the same.

  • 2
    There's a version with a hole in the stud that is 'smaller' in that it weighs less, although the external dimensions are the same.
    – VolleyJosh
    Oct 17 '17 at 15:29

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