Multiple cubes same size

I want to have two cube that are same size, but somehow they are not same size some example from my code
The newCube/extraCube is bigger than the main cube, but i just can’t understand why or how

const cubeGeometry = new THREE.BoxGeometry(10, 10, 10);
const mainCubeMaterial = new THREE.MeshBasicMaterial({ color: 0x00ff00 });
const extraCubeMaterial = new THREE.MeshBasicMaterial({ color: 0xFF69B4 });

const cube = new THREE.Mesh(cubeGeometry, mainCubeMaterial);
const newCube = new THREE.Mesh(cubeGeometry, extraCubeMaterial);

with a perspective camera things that are closer to the camera appear bigger. what other explanation could there be, it’s the same geometry, unless you scale the mesh afterwards.

Maybe need Orthogonal camera