Plastic rope and lifebelt.

By the side of the pond in Gordon Gardens, Gravesend: a lifebelt and its rope. Both made of plastic(s) - nylon or polypropelene, synthetic fibre in the case of the personal flotation device. Plastic is (or can be) a synthetic fibre, probberly. A personal floatation device is a lifebelt...blah blah blah.

 

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Done