JIANWEI Bike Chain Tensioner, Bike Chain Guide Bike Protector, Aluminum Alloy Bicycle Single Speed Adjuster Converter for MTB Road Racing Bike(Black)Features:Material: Made of aluminum alloy material, light weight does not put an extra burden on the bicycle.Spring Design: This chain adjuster can change multi-speed bikes into single speed bike.For 1..

JIANWEI Gymnastics Rings Set for Kids, Professional Children Trapeze Bar Pull Up Rings with Straps Kids Playground Home Exercise Gym Rings with Drawstring Bag for Children ExerciseDescription:You will receive 2pcs gymnastic rings, 2pcs handle covers, 2pcs 1m/39.37inch hanging straps and 1pc black drawstring bag.Made of nylon webbing, PP ring and me..