Data visualization

I would love to get your opinion to how I should visualize total number of product between ranges.

Attached image is how I have designed. My intention here was to show a total number of products between 1 - 2. As you can imagine there can be other bar graph for other ranges. Y axis represents total number of products and X axis represents speed of the product movement.

My questions are: 1. Are there other graphs I should consider using instead of bar graph to show total number over a range. 2. If this graph represents the total product over a range fine, then where should 1 belong? Does 1 belong in between 0 and 1 or 1 and 2?

Thank you in advance.