Avoid the frustration of running out of staples with InVision Desktop Stapler. Colored low-staple indicator shows red when staple count is running low and green when you are good to go. Stapler stores up to four full strips for quick, easy refills. Design includes a rugged, metal reinforced base for extra durability and precise stapling. Full-strip stapler fastens from 2 to 20 sheets with S.F. 4 Premium Staples. Staple capacity is 210 staples.