Safety summary: To ensure the safe operation of Drive canes, these instructions must be followed. General warnings: Do not install or use this equipment without first reading and understanding these instructions. If you are unable to understand the warnings, cautions or instructions, contact a healthcare professional, dealer or technical personnel before attempting to install this equipment-otherwise, injury may occur. Check rubber tip for rips, tears, cracks or wear. If any of these conditions exist, replace rubber tip immediately. Drive Canes can provide ambulatory assistance for an individual weighing up to 300 pounds. The canes are designed to provide support, increased stability and assistance while walking. The canes are not designed to support the total weight of individuals. Ensure that the snap button fully protrudes through adjustment hole of cane. This ensures that the cane is securely locked in position. Before using the cane, ensure that it is securely locked in place or a fall could result, causing bodily injury and/or damage to the cane. Always consult your physician or therapist to determine proper adjustments and usage.