This is a lawn mower from Stiga, which whose minimum cutting height is 25 millimetres.
From ManoMano
Stiga Combi 336c Electric Push Four-Wheeled Rotary Mower 13″ 294340068/ST1
Conrad Electronic
STIGA COMBI 336c Mains Lawn mower 1400 W Cutting width (max.) 34 cm Suitable for Lawns up to 400 m²