Rapid Plastic Spring Balance Scales - Rapid PH10132/1, This 100g / 1N colour-coded spring balance has a robust transparent plastic body with a chrome-plated ring at the top and a hook at the bottom. Rapid Plastic Spring Scale - 100g / 1N
Hooke-s-Law-Demonstration-Apparatus-Rapid-PH10612-P-This-Hooke-s-Law-apparatus-consists-of-a-stand-supporting-a-spring-with-provision-to-hang-masses-from-it-P-Rapid-Hooke-s-Law-Apparatus-Mirror-Scale-120mm