Please see photos for dimensions to ensure that this item will fit your rollator, tri walker or wheelchair. Internal diameter is 25mm.
Folding Rollator Walker Dual Function Transport Wheelchair Rollator Rolling Walker,Foldable 4 Wheel Rollator Walker with Foot Padded Aluminum Transit Chair
Ultra Lightweight 3 Wheeled rollator/Tri Walker with Brakes and Shopping Bag Blue - Only 4.5kgs
Drive 3 Wheel Rollator Tri-Walker with Basket Bag Folding Tray Red Outdoor
Drive 3 Wheel Rollator Tri-Walker with Basket Bag Folding Tray Red Outdoor Blue
Transport Wheelchair Rollator - Folding Walker with Soft Backrest, Detachable Footrests, 4 Wheels, Supports Up to 220 lbs
Transport Wheelchair Rollator - Folding Walker with Soft Backrest, Detachable Footrests, 4 Wheels, Supports Up to 220lbs