All Gelli powders are also certified bio-degradable
Sturdy and durable due to its strong wooden feet
Featuring high performance cotton
600 x 300 x 3
Materials Collection for Magnetism Studies (Each) Gonge All Gelli powders are alsoSet of 20 sample sized squares of various materials Each material sample measures approximately 1x1 inch. The full sleeve of materials measures 13 inches long and 10 inches wide Includes iron, stainless steel, aluminum, wood, polythene, brass, rubber copper, wool, nylon, cork, lead, zinc, carbon, glass, PVC, cotton, cardboard, perspex, nickel Fun way for children and students to learn about different materials and their characteristics Materials are