Price: £3.25

Quantity: 400ml aerosol

Contact: Comma, 01474 564311, www.commaoil.co.uk

The only aerosol in our group, and Comma has positioned the product as a general upholstery cleaner that tackles leather, rather than a specific treatment for hide. This shows in its performance. The fresh, chemical-like lemon smell seemed at odds with leather, and the fierce output was difficult to control. Its grime shifting ability wasn’t too impressive, either – we needed several rubs to remove our ink line.