VEVOR Stand Mixer, 4.2 L+5.7 L Electric Kitchen Mixer, 1500W Dough-Mixer, 10 Speeds Tilt-head Food-Mixer with Stainless Steel Bowls, Dough Hook, Whisk, Beater, for Baking, Mixing, Whipping & Kneading

The internal transmission of this VEVOR Stand Mixer is constructed with metal gears (heavy-duty metal drive train) enclosed inside a durable ABS outer housing. If this answer doesn't resolve the current issue, please reach out to us again for assistance.