Three Easy Steps Complete the Free Shipping Label Form. Drop your puzzles off at any USPS. Receive credit. Put your puzzles to good use Use credits towards any puzzle. Credits are 50% of your puzzle’s market value. Credits are valid for one year. Free Shipping Label Form Please enable JavaScript in your browser to complete this form.Please enable JavaScript in your browser to complete this form.Box Length, Width and Height (8"x8"x8") *Box Weight (in pounds) *Weight of box including puzzles.First and Last Name *Address *State *First ChoiceSecond ChoiceThird ChoiceZip Code *Number of Puzzles Selected Value: 1 Receive Your Free Shipping Label