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The Screen protectors fit my DS lite, here is how to put them on: 1. The come in a clear cellophane envelope, remove from this envelope, using cloth clean DS screens. 2. there are two protectors, trial fit each before doing anything else. 3. Once you know which screen fits where then remove the red sticker (with its screen cover) and this will reveal the sticky side of protector with green sticker attached. 4. stick the protector onto the Ds screen, smooth out to remove bubbles. 5. Remove the green sticker (with its screen cover). 6. Finally smoothing to remove remaing bubbles. 7. Repeat for second screen. Good Luck.