The DataCal Russian language keyboard labels, also known as key top stickers, are a high-quality and economical solution to creating a Russian bilingual keyboard. DataCal labels are manufactured using durable Lexan® polycarbonate and 3M® adhesive, and are printed sub-surface to provide years of use. Easy to apply, with instructions for setting up your computer in Russian. Hundreds of languages available. The student labels are used primarily in older versions of windows but are not compatible with Windows XP, Vista or Windows 7. The regular Russian keyboard labels are compatible with Windows XP, Vista and Windows 7. Our three colors all show well on light colored keyboards, but only green will show well on black keyboards.