The World's Largest Online Measuring Instrument Store!
Providing OEM, Wholesale and Retail Services Worldwide. Toll Free :
1-800-717-5818 (U.S. )


Tresna stands by our satisfaction guarantee of a full refund or exchange within 60 days of your order date. If for any reason you are not satisfied with our products, you may return them to us in their original condition for exchange or a full refund. This guarantee does not apply to custom orders, ODM/OEM/ Wholesale, items not in their original condition, clearance orders, or items that have been modified at the customer’s request.

Returns are easy!
To return or exchange an item – please follow three simple steps below:

1. Send Email to us

First, please and tell us your intention of replacement or refund, as well as purchase details such as

(1) Your name
(2) Your Paypal Account ( Email)
(3) Product ID
(4) Why return/exchange?

Then a Tresna Customer Care Specialist will contact with you in 24 hours and follow your return/exchange.

2. Send back the Item to us

All returns must be sent to this address:

Name of Contact Person: Wang Liqing
Company name: Guilin Guanglu Measuring Instrument Co., Ltd.
Address: 4rd Floor, No.5, Guilin Hi-Tech Industrial Zone ,
Guilin, Guangxi Province 541004, P.R. China
Telephone: +86 - 18977338687
Description of Goods: Measuring Tools Sample Return
Declared Value: $10 (for example)

3. We will exchange or refund item for you

Exchanged or returned item must be received within this 60 day period. We will fefund or exchange item for you in 24 hour after we received it. Please note that any product returned showing signs of used, alteration or damage in any way cannot be accepted.