The blue Tombow Mono Zero Metal Type is a high-precision eraser pen for pinpoint erasing. The ultrafine 2.5mm x 5mm rectangle eraser allows for correcting a single letter or detailed drawing, while the seamless design and alumite coating are used to add lightness, strength and beauty.
The unique indirect chucking system extends the eraser by only 0.7 mm with each push. To refill the eraser, push and hold the knock button on the main body and insert the eraser with the plastic stick from the tip of the sleeve.
Refill eraser can be found here.