Patterson Kelley Lab mixer Patterson Kelley Lab sized blender with enclosure and 2 x 4quart shells with yoke style carrier. Model: Blend Master , serial number C467124 Lab Blender. Max Density rate: 200#/CF Capacity. Yoke STA/1 QTPL,. 110 V - 60Hz power reqd , ODP. Dimensions 2.8ft L x 1.35ft H x 1.89ft W. https://youtu.be/w8KpcfPXnSw