Product review for Equilateral Prism With Base Please read our review guidelines and see the terms of use of posting a review. Overall Rating: and share your thoughts with other customers Sort Reviews: Newest | Oldest | Highest Rating | Lowest Rating   :: Viewing page 1 of 1  -  Friday, June 08, 2007 Color Concentration Reviewed By: Margie Tinis (Sorrento, FL) I have enjoyed using this product for some time. It is easy to keep clean, easy to place in an appropriate facing window and stable enough to withstand activity without falling easily.

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