I am selling this item because I haven't used it much. Purchased on Rakuten for 5090 yen. Dumbbells are not included. Dumbbell Hooks by BODYMAKER: Bodybuilding, Support, Hooks, Attachments, Weight Training, Dumbbell Training By installing these "Dumbbell Hooks," you can save unnecessary energy when bringing the dumbbells to the starting position, as well as reduce the possibility of injury from unnecessary movements. ■Size: Width: Approximately 11.5cm, Length: Approximately 24cm * Inner width of the handle: Approximately 10cm ■Weight: Approximately 0.7kg per pair ■Weight Capacity: 40kg ■Materials: Steel, Polyester