The Uni Kuru Toga Mechanical Pencil is a 0.5mm mechanical pencil that has a fixed lead sleeve and with an adjustable eraser under the push-button. The pencil is supplied fitted with HB Uni Nano Dia lead. It also comes with spare leads.
You can purchase a Uni Nano Diamond Lead Refill here, as well as a refill for the eraser.
148mm long, approx. 10mm diameter and 14g in weight.