Applying materials to non-solids

[Well]

const ringgeometry = new THREE.CylinderGeometry(
		8, 8, // radiusTop, radiusBottom
		2, // height
		64, // radialSegments
		1, // heightSegments
		true, // openEnded
		0, Math.PI*2, // thetaStart, thetaLength
	);

With both LineBasicMaterial or MeshBasicMaterial, the above creates a solid object, even though the geometry is set to openEnded. How do I make a non-solid ring?

[PavelBoytchev]

I see it open ended. Also, I’m not sure what do you mean by non-solid ring.