The "warm" rating category marked with an asterisk does not make sense! Those are ball bearings. Ideal choice for bike repair/restoration. I put new ones (18 per hub) into two 1970's Fuji hubs. Other sizes would fit pedals, an old headset, or a ball bearing bottom bracket if I was doing those jobs. The price of money.
Enhanced Performance Sydien SCS12UU Bearing Bushing Diameter for Precision Machinery
4 Review
π§ High-Quality TIMKEN 6203 2RSC3 6203 2RS Bearing - Size: 17X40X12mm
4 Review
π Wheels Manufacturing Ball Retainer Bag: Convenient Storage and Protection for Your Ball Retainers
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Xiaomi Air 2 Pro Wireless Headphones, Black
86 Review