{"niche":"What are the top-rated height-adjustable office chairs under £200?","description":"What are the top-rated height-adjustable office chairs under £200?","products":[{"brand":"Sihoo","model":"M18 Ergonomic Office Chair","price_gbp":106.02,"origin_country":null,"specs":{"armrests_adjustable":"up and down","max_user_weight_capacity":"150"},"confidence_score":null,"sources":[{"label":"Official US Sihoo Store","url":"https://sihoooffice.com/products/m18-ergonomic-chair","currency":"USD","source_country":"US","price":169.99,"price_gbp":128.74,"scraped_at":"2026-06-28T18:22:20.680118"},{"label":"Best Buy","url":"https://www.bestbuy.com/product/sihoo-m18-ergonomic-office-chair-computer-desk-chair-with-adjustable-headrest-high-back-swivel-chair-for-home-office-black/J38JRQHXC5","currency":"USD","source_country":"US","price":139.99,"price_gbp":106.02,"scraped_at":"2026-06-28T18:22:23.118719"}],"summary":"The Sihoo M18 is an ergonomic office chair with adjustable lumbar support and a height-adjustable headrest for supporting your lower back and neck during long sitting. It also has height-adjustable armrests and reclines up to 126° for breaks. It suits home offices and workplace desks where you want more posture support without a premium-price chair.","ideal_for":"It's a height-adjustable ergonomic chair with adjustable lumbar support, headrest, and up-and-down armrests, and it's sold on sale for 169.99 USD (Best Buy shows 139.99 USD), making it a strong fit for 'under £200' budgets when converted from typical USD sale pricing."}]}