Sitting on the floor with your legs extended, rest your back against a stable bench.
Place a towel or shoulder cushion on the bar for comfort (optional). Hold a dumbbell in each hand over your thighs, so the bars are directly above your hip joints.
Brace your core. As you drive your heels into the ground, squeeze your glutes, lifting your hips up to full extension, meaning your hips are even with your knees.