Thank you for showing your interest in Maxim Standard Wheelchair,18" W/ 7144-Pr from Theradyne (TH). The Maxim Standard Wheelchair,18" W/ 7144-Pr is a product of Theradyne and is thereby made of the highest quality. If you have any questions regarding Maxim Standard Wheelchair,18" W/ 7144-Pr or any product in Theradyne (TH), please contact us. Our experienced personnel will answer any questions you have about Maxim Standard Wheelchair,18" W/ 7144-Pr. Also, if you are interested in purchasing large quantities of Maxim Standard Wheelchair,18" W/ 7144-Pr or any Theradyne (TH), please contact Customer Service.