Tapered metal tube models for Piccolo swivels, made from 50,8 × 2,00 or 50,0 × 2,00mm pipes.

Tapered metal tube models for Patron and Release swivels, made from 50,8 × 2,00 or 50,0 × 2,00mm tubes.

Center Column for base, available with swivel with automatic return or height adjustment

Center Column for base and Patron swivel.

Center column for gas lift spring for chair with five veneer/solid wooden foot blades.

Center Column for metal tube ⌀76.1mm t=2.0mm

Center column compatible with gas spring or metal pipe.