Dual is a new idea of liquid hand wash using solid soap as packaging. The solid soap is made in a high density to make sure it does not crash when pressing the pump. It is designed to decrease the plastic pollution generated by the waste bottles. After using up the liquid soap, user can remove paper wrapping and use the solid soap packings as hand wash. In the end, dispenser pump is the only component left and can be used in other Dual soap replacement.

Mechanical, materials and manufacturing engineering (M3) at The University of Nottingham Ningbo China is an exciting, dynamic and fast growing department. Its programmes cover mechanics, dynamics, kinetics, thermodynamics, energy, fluids, materials, manufacture, ergonomics and design. The Department of Mechanical, Materials and Manufacturing Engineering has strong links with the corresponding departments in the UK and Malaysia campuses of the University of Nottingham. Its exceptionally close involvement with Chinese and international institutions and industries ensures a high quality teaching and research in the relevant professional fields.