Scheduled Maintenance: Our website will be unavailable starting Friday, April 10 at 5:00 PM CST and will be back online Monday, April 13 at 6:00 AM CST. We appreciate your patience.
Precision machined metal blocks with heavy-duty hook on one face. Ideal for measurement and density exercises. Each block measures 3.1 cm on a side. Set of four includes one block each of aluminum, brass, steel and copper. Blocks, including lead, also available individually.