Tube

Tube[{{x1,y1,z1},{x2,y2,z2},…}] represents a 3D tube around the line joining a sequence of points.

Tube[{pt1,pt2,…},r] represents a tube of radius r.

Tube[{{pt11,pt12,…},{pt21,…},…},…] represents a collection of tubes.

Tube[curve,…] represents a tube around the specified 3D curve.

Please visit the official Wolfram Language Reference for more details and examples on core symbols.