How do I ship my ear mold impressions and earphone?

Here are the shipping instructions of impressions or earphones to be repaired below:

Company Name: Micro-DSP/Heir Audio Division Shipping Address: Floor 10, Tower C,
Chengdu International Commerce Building 136 Bin Jiang Dong Road Chengdu, Sichuan
Province, China
Postcode: 610021
Tel: +8628-8667-8148 Ext. 6609
Contact Name: "Sunny"
Item Description: "Sample Ear Mold Impressions"/ "Sample Earphone"
Value: "No commercial value" & "Value less than 5 USD"/"Value less than 20 USD"
It is best to protect your ear mold impressions with a sturdy box.

We recommend you choosing express companies which are faster and safer as courier,rather than surface mail or registered mail by Post service. Please kindly provide us thetracking number for tracking after the shipment is done.

Please kindly note that if there is any import tax because of the high value marked on the waybill from the sender, the sender should take care of the tax.

If order for us to ship your CIEM back to you, we need your:
Complete Address
Telephone Number (Very Important)

You may also ship your ear mold impressions to Chinese Address:

.四川省成都市滨江东路 136 号成都国际商务大厦 C  10 
电话:+86-28-8667-8148  6609
联系人: 张小姐
5 美圆