Reliable wireless combo with a tiny plug-and-forget nano receiver and compact mouse. Advanced 2.4 GHz wireless. Work or play in more places The wireless connection virtually eliminates delays, dropouts and interference and gives you a range of up to 10-meters range Compact mouse. Take the mouse with you. This comfortable mouse fits easily into computer bags and pocket to travel with your computer Extended battery life. A 24-month keyboard and 12-month mouse battery life-plus on/off switch

Kent scale rulers are specially designed to facilitate the drafting and measuring of architectural drawings, such as floor plans and orthographic projections as the scale of such drawings are often smaller than life-size. 1:100, 200, 250, 300, 400 and 500 ratios