Are plastic ratchets for what to use?

Hello, on Amazon I bought the “V2461N” socket wrench set from Vigor for 100€. I noticed only later that this tool case contains plastic ratchets. On Amazon there is then the somewhat cheaper tool case, the “V2461” which has chrome vanadium ratchets and costs 90€. Why is the tool case with the plastic ratchets more expensive than that with chrome vanadium. The chrome vanadium holds much longer than such a plastic. Or am I wrong?? V2461N suitcase with plastic ratchets is more expensive than that with chrome vanadium. k Ratchet: https://amzn.eu/d/97GeIZL V2461 with Chrom Vanadium Ratchet: https://amzn.eu/d/6tYCcis