Free Earplugs! Mack's Earplug Survey | MacksEarPlugs.com (http://www.macksearplugs.com/Earplug_survey.php - broken link)
Upon completion of the survey, participants will have the option to choose one free item from the following list of Mack¹s Hearing Protection products:
Lots of options to choose from
2 pair Mack's® Pillow Soft® Silicone
2 pair Mack's® Slim Fit (TM) Foam
5 Pair Mack's® AquaBlock® Clear with Case
1 Pair Mack's® AquaBlock® Purple with Case
5 Pair Mack's® Dreamgirl TM Foam
5 Pair Macks® Original Foam
5 Pair Macks® Ultra Foam
4 Pair Mack's® Roll-Ups TM Wallet Earplugs