Laxzo ® 2 Pcs Bike Ball Bearing Retainer Replacement Mountain Parts 5/16 inch x 9 Balls Bicycle Repair Accessories for Kids/Stretch MTB Bearings Crank Bottom Bracket

[Sturdy and durable bearing]: This ball bearing cage is made of high-quality metal material with high strength. High quality and durable. [Sufficient quantity]: 2 bicycle front fork balls, sufficient quantity is enough for your daily use, it is a must-have ball bearing for bicycle enthusiasts. [9 balls]: Each cage has 9 balls, each ball has a diameter of 4mm, and the outer diameter of the cage is about 44 mm. The precision cage bearing is an ideal substitute for your bicycle. [Lightweight and portable]: This bearing is very light and convenient for you to carry with you. You can put it in your carry-on bag without occupying your backpack space, allowing you to replace it anytime and anywhere. [Suitable for most bicycles]: This bicycle part replacement bead rack is suitable for ordinary bicycles, mountain bicycles, mountain bicycles, low-riding bicycles and stretch bicycles.