The product description says it is glass and plastic - be aware, there is no glass anywhere in the product that we could find. It is all plastic. That being said, it does seem to be well built and I anticipate it will hold up well. We anticipated that probably the outside bowl would be glass, which would have made it a nice, heavy utensil that could also be used for storing salad materials, but it is just a plastic outside bowl, which is why I gave it an Average value rating. Overall, would rate it a 3.5 out of 5.
I also purchased this spinner due to the description, However, there is no glass, just plastic. It is well made and I am sure it will hold up for many years. I have used this spinner several times while freezing zucchini. It works! Does a great job of removing the water from the zucchini. My next project will be spinning blanched green beans prior to freezing. I haven't used it to spin salad greens but I am sure there will be no problem. Overall I am well pleased with this purchase.