"Sihoo UK" appears to be a legitimate company that sells office chairs. The SIHOO M76 and SIHOO V1 office chairs have been reviewed by Finexo UK, with the reviewers sharing their first-hand experiences and evaluations of the chairs. The SIHOO M76 chair is designed for individuals with heights ranging from 4 feet 9 inches to 5 feet 8 inches and has a weight support limitation of up to 90 kg. The SIHOO V1 is a more modernized version of its sibling and is suitable for individuals up to 6 feet 1 inch in height. However, it may not be ideal for petite users below 5 feet 5 inches. The trust score of the Sihoo website is 58.5, indicating a medium risk. This score is based on a 1-100 scale, with 100 being the most reputable. It's always recommended to do thorough research before making any purchases.