Size is for interial width which match with Belt width.
Please allow any size a small different deviation.
15MM is ONLY Plastic Nylon Material,no POM material supply.
White color are all is Nylon Material.
Black color have POM and Nylon Material different.
Nylon material is a bit soft,but endurable and strong too.
POM is hard and strongly for heavy endurable.
Please check whatever you need very well before order.
@ other more adjust sery items,please feel free to contact me again.
@The FREE SHIPPING orders will be picked by CHINA POST,7-35 working days to the destination.
@International Express/courier will take about 3-7 working days to the destination.
@If your order is more than $200 in total,we will try to free shipping by courier instead of China Post free shipping.
@Any question,please contact us,you will get response within 48hours.
@Please kindly finish the transaction payment before it expire once you placed.
@Please refer to the shopping guides how to buy and how to pay on aliexpress.
After Sold Service
@We will pay attention to track the parcels through the whole process.
@If more than 1 month you do not receive the order,please contact us again.
@Your 5 stars feedback will be highly appreciated.