Overhead transparency markers erase cleanly from transparency films, so you can use them over and over again. Thanks to our wholesale bulk pricing discounts, you can stock up on the EXPO wet erase overhead transparency markers you need for your classroom and business presentations without sacrificing your budget. And with our rush delivery and local pickup options, you can rely on us to deliver your overhead transparency markers when you need them. Questions about the overhead transparency markers for sale at On Time Supplies? Contact our customer service representatives toll free at 1-866-501-6055. We're happy to answer any supply questions.