Lap Stand Combo has a unique tongue and groove no-slip hoop configuration which holds the fabric taut while working on your project. These Lap Stands are designed to elevate the project hoop above the lap while the unique feature of this stand is that it is collapsible. Each stand is composed of two hoops held together by three supporting rods which space the hoops 4-1/2-inch apart. Simply invert the Lap Stand to work with either size hoop. Made of Plastic. Hoop sizes: 7 and 10-inch diameters.