Thank you for showing your interest in Aluminum Wing Nut Adjustable Crutches, Adult from Harvey's Surgical (HG). The Aluminum Wing Nut Adjustable Crutches, Adult is a product of Harvey's Surgical and is thereby made of the highest quality. If you have any questions regarding Aluminum Wing Nut Adjustable Crutches, Adult or any product in Harvey's Surgical (HG), please contact us. Our experienced personnel will answer any questions you have about Aluminum Wing Nut Adjustable Crutches, Adult. Also, if you are interested in purchasing large quantities of Aluminum Wing Nut Adjustable Crutches, Adult or any Harvey's Surgical (HG), please contact Customer Service.