1.material :natural rubber,100% rubber 2.specifications:the diameter is 38mm ,the widthness is 1.5mm 3.the best quality .

1.material :natural rubber,100%rubber

2.specifications:the diameter  is 38mm,the widthness is 1.5mm

we have 25mm /38mm /43mm/50mm .(the size is for diameter )

3.Usage: use for bank for bind money ,or in office .

4.Can pass environmental test.

5.the quality is the best one ,and can high temperture .

6.the packaging is 100g/bag ,200bags/carton ,or accoring to you requirements .