Using this model is easy. Just connect it to an analog DC power source to get it running. When handling, be gentle as it's a fragile item. For storage, keep it in the original box to protect it from dust and damage. Check the wheel wear regularly. If you notice any excessive noise, it might be a sign to clean the motor and gearbox. For international buyers, remember you're responsible for import duties and tariffs. If you're not happy with your purchase, contact us within 30 days for a refund, but you'll need to pay for return shipping unless the item arrived damaged.