(30) White Heavy Duty 30mil Blu-Ray DVD Case Divider Cards - 5 1/2" x 7 3/4" - DVNS78WH30 Reusable - Simply flip over or turn upside down! Perfect for Blu-Ray, HD DVD, and Playstation 3 Cases! 30mil Thick 5-1/2" x 7-3/4" They're durable, and feature rounded corners to prevent jabbing yourself!