Price reference:

250 of credit card shape promotional USB flash drives

4GB print both sides

125 of each design

Credit card USB drive price as below,

4GB inside
Logo: with 2 sides 4-c process printing
Packing: opp bag unit packing
Delivery: ex-work HK
Timeline: 9 days delivery

Unit price: USD 3.55 per piece

Sample cost: USD 10 x 2 designs = USD 20