1.25 Pound Weight Clips – Adds 2.5 Total Pounds - For Dumbbells, Kettlebells, and Barbells - 1.25 Weight - Dumbbell Add Weight - Dumbbell Weight Clips - Weight Clip - Fractional Weight Plates (4 Clip Pack)

You can get 1.25 lb weight clips that clamp on to dumbbells so you can do 26.25 and 27.5 lbs. that way you can work your way up to 30lbs if 30 is too much. I got these ones off amazon: https://a.co/d/0g1Fyh9a There are a few brands and styles though.