**Advantages**:
1. **Portability**: The integrated wheels make it easier to transport heavier loads.
2. **Versatility**: Can be used as a backpack or a rolling suitcase.
3. **Durable Design**: Built to withstand tough conditions.
4. **Multiple Compartments**: Organises tools and equipment efficiently.
5. **Comfort**: Padded back and shoulder straps for comfort when carried.
Disadvantages:
Weight: The wheels and handle mechanism add to the overall weight.
Size: Might be bulkier than non-wheeled backpacks.
Terrain Limitation: Wheels may not work well on all terrains.
Cost: Typically more expensive than backpacks without wheels.
Maintenance: Wheel mechanism might require periodic checks and maintenance.
Problems & Solutions:
Problem: Difficulty in wheeling on uneven surfaces.
Solution: Opt for a different bag on rough terrains or carry it as a backpack.
Problem: Wear and tear on the handle due to frequent usage.
Solution: Regularly inspect and maintain the handle. If needed, reach out to the manufacturer for a replacement or fix.
Problem: Straps getting entangled with wheels when rolling.
Solution: Secure the straps properly or tuck them away before using it as a roller.