Cast Iron Dumbbell Set 20 kg, 25 mmE Series Dumbbell Set 25 mm Cast Iron 20 kg Train with Power and Precision All beginnings are easy but a dumbbell set with various weight plates is a must! The E Series dumbbell set 25 mm cast iron 20 kg from Gyronetics is the ideal introduction to strength training. Detailed Breakdown of the 25 mm Cast Iron 20 kg Dumbbell Set Capabilities It allows you to do basic dumbbell exercises such as bicep curls and tricep presses, side raises, and the