Kneadable putty rubber by long established Czech brand Koh-I-Noor. Comes in a retro blue colour with a chunky, satifsying weight. Measures approx 50 x 38mm with a depth of 8mm. Comes packaged in a thin plastic wrapper to keep it clean.
This is a medium-soft rubber. If you're looking for a softer putty rubber, our red 'Super Extra Soft' putty rubber is stickier and more flexible.