Zwaardis parts are divided into four groups -Bases -Table supports -Seat supports -Accessories Accessories are "add-ons" such as slides for a seat or table, footrests, cap for the recessed bases. Produces which enhance functionality and comfort. There is also a base QF 100 which has bee specially designed for Ø 60 and 76 mm columns. This is an anodised aluminum recessed base with a 316 stainless steel cover. This cover clips onto the aluminum base by means of a plastic clip. This unique design has been patented.