Maybe one of these similar products would be of interest:-

16" Olympic Dumbbell Handle, Dumbbell Bar for 2-inch Olympic Weight Plates, Loadable Dumbbells for Home Gym Strength Training, 2 Pair of Spring Collars Included

16" Olympic Dumbbell Handles Black, Loadable Dumbbells Bar Sets (150LBS Weight Capacity), Compatible with 2’’ Standard Plates, 2 Pair of Spring Collars Included

LIONSCOOL 16“/”20” Loadable Dumbbells Pairs in Commercial Grade, Heavy Duty Olympic Dumbbell Bar/Handle for Strength Training, Compatible with 2’’ Standard Plates(Silver Chrome, 20 INCH)

LIONSCOOL 16”/20” Loadable Dumbbells Pairs, Heavy Duty Olympic Dumbbell Bar/Handle for Strength Training, Compatible with 2’’ Standard Plates (Black, 16 INCH, 25MM)

16" Olympic Dumbbell Handle, Dumbbell Bar for 2-inch Olympic Weight Plates, Loadable Dumbbells for Home Gym Strength Training, 2 Pair of Spring Collars Included Silver