These are print-in place cable rings to make loose cable into neat and tidy bunches. They are flexible, so you can gently pull them open, push each cable into the ring, and then let go and it will flex back closed.

Print the small rings for bunches of about 4-8 cables, and the large rings for bunches of about 8-12 (or for very thick cables). I do not recommend scaling the model down, as this will make them thin and fragile.

NOTE: You MUST print with 100% infill and PLA! Low infill will make them fragile, and they were designed around the natural flexibility of PLA.