AMACO Marblex™ Self-Hardening Clay, 5 lbs. 5 lbs., Gray
AMACO Marblex™ Self-Hardening Clay, 5 lbs. 5 lbs., Gray. Knead Marble to increase plasticity before modeling. Keep unused clay in a plastic bag or wrapped in damp cloth to prevent drying out. Durable and self-hardening clay.