It is easy to install.Included in the Set: Weight Plates ( (2+2.75) lbs 4,, Dumbbell Handles 1, Barbell Conncecting 1, Kettlebell base rod 1, Dumbbell bar 2，Spinlock Collars 4. 【4 in 1 Multifunctional Dumbbell Set】With The Trakmaxi Adjustable Dumbbell Set, you can get a pair of dumbbells also barbells, kettlebells and push-up stands, which help you do many exercises including bench presses, squats. ).
