Specifications:

Model: BS688(8*22*7)
Material: pom   /  plastic  
Inner diameter: 8 mm
Outer diameter: 22 mm
Width: 7 mm
Quantity:10 PCS

Feature:

Mute wear-resisting   Won't come unglued

Note:
Manual measuring, please allow 1 ~ 2 mm error,thank you.

In our store, as our valued customer,  if you're unhappy, we're unhappy. It is really just that simple! We want you to be absolutely confident in every order you placed, so we have a 90 day no-quibble return policy to put your mind at ease.

Our return policy, in a nutshell,
You can return anything for any reason in 90 days after you bought it, even though you just didn't like it, no matter if it has been opened, worn or used.
We do ask that you pay for the return shipping unless the product is faulty, in this case, we'll send you a replacement at our costs.
You will get an immediate replacement (if in stock) or full refund when we received the returns.
Contact our customer service via email or TradeManager to learn how to return.

We take great care in packing every detail to ensure safe shipment to you .Therefore please check the package before you sign to receive it, if it is broken or damaged, you can make a record with the carrier. At the same time, you can take a photo and send to us, we will solve the problem for you at the first time.

If you are awholesale, please contact us beforeplacing an order, we will in order to provide more faster shipping method.