This set of 12 cylindrical bars is ideal for hands-on investigations into density, mass and volume, supporting practical science lessons for primary, secondary and college students. Teachers can use these bars to help learners identify materials and understand key physical properties through direct comparison and calculation.

• Includes 12 cylinders, each made from a different material: hardwood, softwood, aluminium, copper, brass, rubber, nylon, Derlin, PVC, glass, acrylic, and Teflon
• All cylinders have a uniform diameter of 12.5mm but vary in length
• Supplied with a comprehensive manual covering density, mass, volume and calculation methods
• Comes in a sturdy wooden storage block for easy organisation
• Designed for classroom use; some metal bars may show oxidation over time, which can be easily removed