This device “shreds” plastic bottles to make them easier to carry and to make crafts with them –
Aiming to reduce the volume of PET bottles carried by “catadores” (people who collect bottles and other kinds of waste from streets), Takashi Utsumi developed a device with which one can rapidly shred PET bottles into ribbons suitable for use in crafts. There are two types of PET shredder:
PET bottles shredder (filetador) – [via] Link.
More:
Miwa Koizumi: PET project – plastic water bottles – Link.
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