Small Dog Wheelchair for Outdoor Use

Miniature Schnauzer, 6kg, female, indoor dog.
Purchased online and used for outdoor walks for my beloved dog who has difficulty with her hind legs.
Made of aluminum, it is lightweight and can be adjusted slightly in length and width.
When purchased, the instruction manual, dedicated screwdriver, spare screws, and an aluminum handle were included, and I will also include those. However, a hex wrench was not included, so you will need to provide one. (Available at 100-yen shops.)
We walked on asphalt paved surfaces. There are dirt and scratches on the tires. The yellow ball attached to the tip was something I added myself to prevent my dog from injuring her face, but it can be easily removed if not needed.
The tires will be washed and dried before shipping.
Due to shipping costs, the front and rear wheels will be removed and the item will be shipped compactly.
I work during the day, so I may not be able to respond to your questions immediately. Thank you for your understanding.
This is a used item with signs of use, so please refrain from purchasing if you are sensitive.
Thank you for your consideration.

*I am also selling an indoor type of the same model of dog wheelchair.