Instruct: Classify an Amazon review into positive or negative sentiment.
Query: poor design

he machine was too small for my foot which is not exceptionally large for a man (10 1/2 D). I could not fit my foot inside properly. It squeezed the toe area and was painful. The machine apparently is not adjustable/accomodate different foot sizes; small feet only. When It ried to return it I received two e-mails from the shipper trying to convince me to keep it as I was not accoustomed to the pain of a relexology massage. I finally sent it back. The machine sold for $109 and I had to pay shipping and return charges of about $40.