Our practical eraser refills are designed to fit a variety of electonic erasers, making them an essential accessory for artists, students, and professionals. These replacement cores are great for sketching, drawing, and detailed erasing tasks. Simply insert the refill into your electonic eraser, and you're ready to tackle any project with precision and ease. Features -Color:White -Material:TPR -Size (thick):2.50X0.50X0.50cm/0.98X0.20X0.20in -Size (thin):2.50X0.23X0.23cm/0.98X0.09X0.09in -Efficient erasing: the electonic eraser refills utilize advanced technology to quickly and thoroughly remove marks from pencils, colored pencils, and charcoal -Timesaving: compared to traditional manual erasers, these electonic eraser refills complete erasing tasks faster, saving you -Fine material: made from tpr material, the refills are soft yet wear-resistant, resistant to breaking, and ensure use -Precise erasure: the design of the refills allows for precise erasing, preventing accidental removal of parts you want to keep, protecting your integrity -Easy replacement: replacing the refills is very simple; just the old refill and twist on the new one, making the process quick and convenient Package list: 90 x thick erasers 120 x thin erasers