Part 4733

The Four Knob Brick, or Erling is a common brick that supports bricks on all 6 sides. The most common colours are Black and Dark Stone.
== Appearances ==
=== Black ===
* 5 in 4485 MINI Sebulba's Podracer & Anakin's Podracer
* 4 in 6987 Message-Intercept Base
* 4 in 10183 Hobby Train Set
* 3 in 5970 Freeze Ray Frenzy
* 3 in 8927 Toa Terrain Crawler
* 3 in 4504 Millennium Falcon
* 3 in 10197 Fire Brigade
* 2 in 7264 Imperial Inspection
* 2 in 6983 Ice Station Odyssey
* 2 in 10182 Cafe Corner
* 2 in 6057 Sea Serpent
* 2 in 6568 Drag Race Rally
* 2 in 3053 Emperor's Stronghold
* 2 in 3841 Minotaurus
* 2 in 6886 Galactic Peace Keeper
* 2 in 6850 Auxiliary Patroller
* 2 in 5987 Dino Research Compound
* 2 in 3838 Lava Dragon
* 2 in 5056 Space Elements
* 2 in 6385 Fire House-I
* 2 in 10199 Winter Toy Shop
* 1 in 4856 Doc Ock's Hideout
* 1 in 5928 Bi-Wing Baron
* 1 in 6894 Invader
* 1 in 10193 Medieval Market Village
* 1 in 9293 Community Workers
* 1 in 4506 Deep Sea Predators
* 1 in 7644 MX-81 Hypersonic Spacecraft
* 1 in 6765 Gold City Junction
* 1 in 6494 Mystic Mountain Time Lab
* 1 in 6257 Castaway's Raft
* 1 in 7654 Droids Battle Pack 
* 1 in 7702 Thunder Fury
* 1 in 7709 Sentai Fortress
* 1 in 7707 Striking Venom
* 1 in 6931 FX-Star Patroller
* 1 in 852293 LEGO Castle Giant Chess Set
* 1 in 6277 Imperial Trading Post
* 1 in 6923 Particle Ionizer
* 1 in 6973 Deep Freeze Defender
* 1 in 3832 The Emergency Room
* 1 in 6081 King's Mountain Fortress
* 1 in 6761 Bandits' Secret Hideout
* 1 in 6090 Royal Knight's Castle
* 1 in 7261 Clone Turbo Tank
* 1 in 3050 Shanghai Surprise
* 1 in 10129 Rebel Snowspeeder
* 1 in 4857 Doc Ock's Fusion Lab
* 1 in 3219 MINI TIE Fighter
* 1 in 6965 TIE Interceptor
* 1 in 7779 The Batman Dragster: Catwoman Pursuit
* 1 in 6263 Imperial Outpost
* 1 in 7899 Police Boat
* 1 in 4020 Fire Fighter
* 1 in 6807 Unknown
* 1 in 6898 Ice-Sat V
* 1 in 1621 Lunar MPV Vehicle
* 1 in 6261 Raft Raiders
* 1 in 6802 Space Probe
* 1 in 4484 MINI X-wing Fighter & TIE Advanced
* 1 in 6296 Shipwreck Island
* 1 in 5974 Galactic Enforcer
* 1 in 7161 Gungan Sub
* 1 in 3419 Precision Shooting
* 1 in 3414 Precision Shooting
* 1 in 3827 Adventures in Bikini Bottom
* 1 in 78800 Soccer Co-Pack
=== Blue ===
* 3 in 7994 LEGO City Harbor
* 2 in 7898 Cargo Train Deluxe
* 2 in 7675 AT-TE Walker
* 1 in 6885 Crater Crawler
* 1 in 6952 Solar Power Transporter
* 1 in 6891 Gamma-V Laser Craft
* 1 in 6192 Pirate Building Set
=== Dark Red ===
* 1 in 4507 Prehistoric Creatures
* 1 in 4495 MINI AT-TE
=== Dark Stone ===
* 8 in 852293 LEGO Castle Giant Chess Set
* 6 in 10186 General Grievous
* 6 in 10191 Star Justice
* 4 in 10181 Eiffel Tower 1:300
* 2 in 7676 Republic Gunship
* 2 in 10188 Death Star
* 2 in 4744 Tundra Tracker
* 2 in 10192 Space Skulls
* 2 in 10183 Hobby Train Set
* 1 in 7040 Dwarves' Mine Defender
* 1 in 7037 Tower Raid
* 1 in 7785 Arkham Asylum
* 1 in 7749 Echo Base
* 1 in 4853 Spider-Man's Street Chase
* 1 in 7666 Hoth Rebel Base
* 1 in 5525 Amusement Park
* 1 in 7787 The Bat-Tank: The Riddler and Bane's Hideout
* 1 in 4924 Advent Calendar
* 1 in 8108 Mobile Devastator
* 1 in 4495 MINI AT-TE
* 1 in 10193 Medieval Market Village
* 1 in 10185 Green Grocer
=== Green ===
* 1 in 4097 Mini Robots
* 1 in 4048 Mech Lab
=== Medium Stone ===
* 2 in 8925 Barraki Deepsea Patrol
* 2 in 7783 The Batcave: The Penguin and Mr. Freeze's Invasion
* 2 in 5526 Skyline
* 1 in 10210 Imperial Flagship
* 1 in 7687 City Advent Calendar
* 1 in 7994 LEGO City Harbor
* 1 in 4406 Buildings
* 1 in 7795 LEGO Deluxe Starter Set
* 1 in 10174 Ultimate Collector's AT-ST
* 1 in 3600 Build Your Own House
=== Old Brown ===
* 2 in 7121 Naboo Swamp
=== Old Dark Grey ===
* 3 in 4485 MINI Sebulba's Podracer & Anakin's Podracer
* 3 in 4491 MINI MTT
* 3 in 4488 MINI Millennium Falcon
* 2 in 6089 Stone Tower Bridge
* 2 in 10019 Tantive IV / Rebel Blockade Runner
* 2 in 6093 Flying Ninja's Fortress
* 2 in 4850 Spider-Man's First Chase
* 1 in 4712 Troll on the Loose
* 1 in 7127 Imperial AT-ST
=== Old Gray ===
* 3 in 7467 International Space Station
* 2 in 4100 Maximum Wheels
* 2 in 4047 Ultimate Wheels
* 2 in 5935 Island Hopper
* 2 in 1349 LEGO Studios Steven Spielberg MovieMaker Set
* 2 in 6991 Monorail Transport Base
* 2 in 6702 Space Mini-Figures
* 2 in 4486 MINI AT-ST & Snowspeeder
* 2 in 7139 Ewok Attack
* 2 in 6083 Samurai Stronghold
* 2 in 5175 Space Elements
* 1 in 7417 Temple of Mount Everest
* 1 in 7423 Mountain Sleigh
* 1 in 3416 Women's Team
* 1 in 6398 Central Precinct HQ
* 1 in 6397 Gas N' Wash Express
* 1 in 6872 Lunar Patrol Craft
* 1 in 3424 Target Practice
* 1 in 6395 Victory Lap Raceway
* 1 in 6472 Gas N' Wash Express
* 1 in 10030 Imperial Star Destroyer
* 1 in 4482 AT-TE
=== Tan ===
* 1 in 7000 Young Ankylosaurus
* 1 in 5950 Baby Ankylosaurus
=== White ===
* 4 in 10199 Winter Toy Shop
* 4 in 7998 Heavy Hauler
* 3 in 10186 General Grievous
* 3 in 7783 The Batcave: The Penguin and Mr. Freeze's Invasion
* 3 in 7990 Cement Mixer
* 3 in 10030 Imperial Star Destroyer
* 2 in 10185 Green Grocer
* 2 in 7945 Fire Station
* 2 in 7885 Robin's Scuba Jet: Attack of the Penguin
* 2 in 5483 Ready, Steady Build, and Race
* 1 in 10193 Medieval Market Village
* 1 in 6211 Imperial Star Destroyer
* 1 in 4556 Train Station
* 1 in 7410 Jungle River
* 1 in 10184 Town Plan
* 1 in 3827 Adventures in Bikini Bottom
== External Links ==
Category:Parts
Category:LEGO Digital Designer parts