Resin Band (shopcasio.jebsen.com)
Band Material: Urethane (amazon.com)
Urethane is mainly used in the production of amino resins. Exposure to urethane can affect the central nervous system, liver and can cause bone marrow suppression. Urethane is reasonably anticipated to be a human carcinogen. (pubchem.ncbi.nlm.nih.gov)
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