21 holes plastic spring binder
Rectangular hole: 3x8mm
Manual binding system
Number of punched paper: 18 sheets of A4 (70gms)/time
The maximum number of papers attached to the spring: 500 sheets
Alignment and back adjustment function
Spring: 5 kg
Dimensions: 405x295x170 mm
- 质量承诺
- 正品保修
- 送货到家
- 交易简单化