LEGO Technic Knob Cog / Gear / Wheel, Yellow [32072] 6284189 Share WhatsApp Deel X Pin it Messenger Email Product form SKU: 32072YEL $0.45 Quantity Add to cart This item is a recurring or deferred purchase. By continuing, I agree to the cancellation policy and authorize you to charge my payment method at the prices, frequency and dates listed on this page until my order is fulfilled or I cancel, if permitted.