Potential duplicate content issue?

[RayflexGroup]

We have a category on our website for PVC rolls to buy as standard 50m rolls (this includes 15 products in the category). We're also releasing PVC rolls to buy per metre (10m roll/25m roll etc...), again with 15 products, which we are adding as a separate category as it makes more sense for our customers and removes the risk of having too many options.

Would using the same description be bad practice for SEO? The product is exactly the same just available in different roll sizes, but we definitely do not want to combine categories as it doesn't work for our customers.

Any help or suggestions would be appreciated, thanks.