lumbar support

Clear guide to office chair mechanisms: differences between permanent contact, tilting and synchro, pros/cons, proper adjustments, how to choose by use (occasional, standard, intensive) and indicative prices for new and refurbished models.

Practical guide to choosing refurbished ergonomic chairs: key adjustments, mechanisms, EN 1335/ISO 9241 standards, sizes and a final checklist. Free shipping in mainland Spain and clear warranties.