These will fit all Olympic weight plates. They are made from solid steel with chrome finish and comes as a pair. Great to use for Weight lifting and training or strength building. 
Easy to hold and can be used for various exercises.
The Pair of bars come with 4 Olympic spring collars
These also have the Revolving Collars

Specification
Measurements: 51cm in Length Each Dumbbell
Each dumbbell weight with spring collar is 5.2kg

Features
Chrome Threaded 2" Olympic Dumbbell Bar Handles
Fits all Olympic 2" or 2.5cm Weight Plates
4 X Spin Lock Collars in Chrome also Included
Solid Bars and Comes as Pair
Smooth Chrome finish
Compatible with all Olympic Plates
REVOLVING COLLARS