Lateral Raise Machine.

Lateral raises without the knee dip.

Lateral raises with dumbbells tend to become a little dip in the knees and a jerk upwards as soon as the load gets uncomfortable, and the medial deltoid gets off the hook exactly when it starts to count. Here the forearms rest against arm pads that keep the elbow in a fixed path through the whole raise, so you cannot bring momentum from below. 80 kg in the stack is far more than a strict lateral raise requires, but it gives you room for drop sets without putting anything down. The machine takes 1286 × 1130 mm and weighs 210 kg. Ten kilos feels like twenty. That is the point.