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Reference.org
Foam peanut
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<p>Foam peanuts, also known as foam popcorn, packing peanuts, or packing noodles, are a common loose-fill <a href="/facts/Packaging/QGRXJLjq">packaging</a> and <a href="/facts/Cushioning/mzLNpXmr">cushioning</a> <a href="/facts/Material/Rmt5HySL">material</a> used to prevent damage to fragile objects during shipping. They are shaped to interlock when compressed and free flow when not compressed. They are roughly the size and shape of an unshelled <a href="/facts/Peanut/dMd0XWsu">peanut</a> and commonly made of <a href="/facts/Expanded_polystyrene/dfIVntty">expanded polystyrene</a> foam. 50–75 millimetres (2-3 in) of peanuts are typically used for cushioning and void filling packaging applications. The original patent was filed for by Robert E. Holden in 1962 and was granted in 1965. </p>