The Cobra GTRM34 is a 13" Electric Lawnmower with a lightweight rear roller.  It has a 1300w motor.  
Hand Propelled
Cutting Width 13"/34cm
Central Single Lever Height Adjuster,  7 Positions, Cutting Height 20-75mm
Grass Catcher 40 Litre
Folding cam lock handles
Polymer deck
10 metre cable
Weight 13kg
2 Year Domestic Warranty