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Polychaeta, Bristle Worm

$19.00 – $400.00

The Polychaeta /ˌpɒlɪˈkiːtə/, also known as the bristle worms or polychaetes, are a paraphyletic class of annelid worms, generally marine. Each body segment has a pair of fleshy protrusions called parapodia that bear many bristles, called chaetae, which are made of chitin. As such, polychaetes are sometimes referred to as bristle worms. More than 10,000 species are described in this class. Common representatives include the lugworm (Arenicola marina) and the sandworm or clam worm Alitta.

Select options This product has multiple variants. The options may be chosen on the product page

Ball Point Pen

$19.00 – $400.00

A ballpoint pen, also known as a biro, or ball pen, is a pen that dispenses inkover a metal ball at its point, i.e. over a “ball point”. The metal commonly used is steel, brass, or tungsten carbide. It was conceived and developed as a cleaner and more reliable alternative to dip pens and fountain pens, and it is now the world’s most-used writing instrument: millions are manufactured and sold daily. As a result, it has influenced art and graphic design and spawned an artwork genre.

Pen manufacturers produce designer ballpoint pens for the high-end and collectors’ markets.