Color Labeling System,Label Size 3-1/2 quot;x1-1/4 quot;,160/BX,White Create color-coded labels that attach to the patented three-sided hanging folder tabs. Unique tabs can be read from top, front or back for increased filing efficiency. Starter kit includes Windows-based software, 25 tabs, 32 labels and 32 clear label protectors. Compatible with Windows(R) 2000 or later; Internet Explorer 6.01 or later. System requirements: Windows 2000 with Service Pack 4, Windows XP with SP2, Windows Server 2003 with SPI, Windows Vista, Windows 7, Windows 8.