Pcs Could use it with single or seveals. ◆ Attached safely foot-treat switch. ◆ It could collected seval head machine do binding pin together without ◆ use any space, it will increase more work efficiently. ◆ SPECIFICATION ◆ Stapling performance 50 Sheets ◆ Stapling depth Variable adjustment up to 100mm ◆ Power 220V 50Mhz. 110V 60Hz- 30W ◆ Staples 66/6, 66/8 ◆ Dimensions (mm) 250(L) x 60 (W) x 438 (H) ◆ Weight 4.2kg