For a quick one-dumbbell workout.

Seated Dumbbell Exercises

2 One-Dumbbell Workouts That Take Less Than 30 Minutes - Muscle & Fitness

Dumbbell Shoulder Workout, Shoulder Exercises

Dumbbell-Only Workout: Try This Full-Body Complex

Dumbbell Only Workout: 3 Day Full Body Dumbbell Workout

30 Minute One Dumbbell Workout to Get Lean and Strong/ Full Body Dumbbell Workout

Dumbbell Workout for Beginners to Build a Strength Base

Dumbbell Exercises for Arms: 10 Best Strengthening, Toning Exercises

One Dumbbell Workout

Full-body Workout: One Dumbbell, Four Moves and 20 Minutes