Looks like a standard crochet rug, except instead of a cord in the center, there is a LED rope light. It should follow a 'magic ring' of six stitches, then 12 in the next round, 18 after that, then 24, etc. In the US, clothes line might be about the right weight to put the whole thing together.
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What a cool idea. Crochet around a rope light to create a light-up rug. Great for a covered patio outside at night.