PROFORCE DB-ZEN ADJUSTABLE DUMBBELL SET - 24kg The outer rubber is made of compressed steel inside.

It comes with the black insertion apparatus underneath.

The minimum weight is 2.5 kg.

Afterwards, you can reach a maximum of 24 kg, 2.5 - 3.5 - 4.5 - 5.5 - 6.5 - 8 - 9 - 10 - 11.5 - 13.5 - 16 - 18 - 20.5 - 22.5- 24.

The middle bar is also included in the weight of 24 kg.