1. Material: plastic + metal
2. Motor type: brushed motor
3. Power supply voltage: 220v
4. Power: 20 model: 500w, 24 model: 680w
5. Rotational speed: 20 model: 850r/min, 24 model: 900r/min
6. Simple installation, durable and stable, easy to operate, widely used
7. Machine weight: 20 models about 1.9kg, 24 models about 2.8kg
8. Machine size: 20 model about 34 x 20 x 8cm, 24 model about 36 x 20 x 8cm, the power cord length of about 200cm