You decide the style of your chair. The seat shell is available in different colors, and the underframe SEFAST is available in white, black and chrome-plated colors. Easy assembly with only 4 screws. You can stack the chairs, so they take less space when you're not using them. You can revitalize with a new look at home by swapping the seat shell. SEFAST underframe works well with KARLPETTER or LIDÅS seat shells, sold separately. May be completed with FIXA self-adhesive floor protectors to protect the underlying surface against wear.