Invacare 5" Single Fixed-Wheel Attachments with Glide Tips Fixed wheels with glide tips provide walker with better maneuverability and stability. Invacare 5" Walker Fixed Wheels with Glide Tips provides increased maneuverability and stability, making it ideal for users who need to travel straight and have the strength to pick up the walker and change directions when needed. Larger wheels make navigating terrain easier Height Adjustment: Adult: 33" - 39" Junior: 28" - 33" Warranty: Limited Warranty - 5 Year