The 4m x 60cm Double Aluminium Bubble Radiator Insulation Foil by sanheshun is designed to provide efficient insulation for radiators, walls, and floors. Made from durable polyethylene material, this foil sheet comes in a sleek silver colour and is perfect for central heating systems. With a large size of 60cm x 5m, this insulation foil is ideal for use in sheds, garages, and other spaces to help retain heat and reduce energy waste. Easy to install on both the floor and walls, this product is a practical and effective solution for improving the efficiency of your heating system.