1. High Grade Quality Material: These Metal Flanged Ball Bearings undertake with wonderful bearing metal material, which is sturdy ample for long-term use, at the same time, it is designed with a polished comfortable floor to provide a excessive performance with a low noise during working, no fear about rusty and corrosion2. Double Sealed for Long Term Service: These Flanged Metal Steel Ball Bearings are designed with double sealed/ shielded to protect the bearing from dust, water and international subject or any possible contaminants invasion, and it's going to maintain lubricant in for many years use as well, saving a lot3. Multifunctional Flanged Ball Bearings: There comes with totally 10 pieces of Flanged Ball Bearings within the package, which can be used for different of different projects, you may hold them for spare or simply use them to replace the outdated ones, really easy and convenient. And they are relevant to mechanical equipment, electrical instruments, toys, doors, windows and etc4. Suitable Size: These Flanged Metal Shielded Ball Bearings are great for 8mm shaft/rod tasks with it is compact size,Suitable length for various projects5. Excellent Performance: These Flanged Miniature Bearings feature with strong driving capacity, excessive patience and high precision bearing balls for meeting line. It can be applied for top speeds and supporting both radial and axial a lot that needs excessive working accuracy at excessive rotational speeds.Specifications:Flange Diameter: 18mm / 0.7inchcolour: silverMaterial: steelsize: eight x sixteen x five mmPackage Contents: 10 x BearingsOnly the above equipment content, other merchandise aren't included.Note: Light shooting and different reveals may cause the color of the article in the picture somewhat diverse from the genuine thing. The size allowed error is +/- 1-3cm.