Suitable size and in good quality for a small transport need. Excellent price-quality ratio. The velcro straps for the vertical tube are a bit too long, but the tube is quite thin in a steel frame bike.
The product is actually smaller than the given dimensions.
Just right for the trek
Otherwise good but water resistance would have been a Plus
A cheap basic bag that can hold, for example, a change shirt. Velcro fasteners don’t seem like the most robust option, but perfectly adequate for basic cycling and commuting.