LM-2 “Junior Arm” is a compact and handy extraction arm designed specifically for schools, small working booths and areas with a low ceiling. The telescopic design of the LM-2 features a spring-balanced telescopic tube with a counterweight that can be pulled out and folded back concertina-fashion, and can be angled and positioned exactly as required with just one finger. An efficient, versatile bench work source capture arm, always at hand and easy to reach.