The spring-type dinamometer can be mounted on a magnetized board for the purpose of demonstration The spring-type dinamometer can be mounted on a magnetized board for the purpose of demonstration. Includeds pulley with ball bearing axles and cord groove, cord and hook. Large, easily visible round dial as well as zero-point adjustment using knurled screws ForceNo.1NP1024102NP1024205NP102450 DIAL ...