Instruct: Classify Amazon reviews into positive or negative sentiment
Query: puzzle mat

I ordered this mat for my 89 year old mother to use while putting her puzzles together. I must not have read the product info very well, because this is just a really large piece of felt. Puzzle pieces get "stuck" and are impossible to move around. There are also wrinkles in the material, making the puzzle pieces not able to lie flat. When she has finished the puzzle that she is working on, the puzzle mat will go into my craft bin for a recycle!