SUMC 9 10 11 12 speed Bicycle Rainbow Chain Colorful MTB Mountain Road Bike Shifting Chain With Missinglink For Shimano Sram

The reviewer mentions the SUMC rainbow chain as a colorful option they purchased to match their purple-themed bike build. They state it is a super lightweight chain with hollow plates and links, and that SUMC is a decent brand whose chains are on par with Shimano or SRAM products at a similar price point.