3001bBrick 2 x 4 without Cross Supports, with Hole in TopPart number3001bCategoryBricksMaterialPlasticAppears in1 setsThis part on Rebrickable ↗ (opens an external website)Available colours 1Red#C91A091 sets – Sets in this colour: RedNumbers at other sourcesSourceNumberRebrickable3001bRelated partsOther moulds3001 Brick 2 x 4Sets containing this partColourAll coloursRedApply1 result513-1Building Set197031 partsBasic Set1× in this set