The Westalee Design 8 Point Crosshair Ruler Is For Marking 4 90deg Or 8 45deg Or 16 225deg Or 32 1125deg Reference Lines When Quilting On Domestic Longarm Or With Embroidery This Marking Tool Is Essential Reference Lines Give A Much Better Result When Using Rotating Templates Reference Lines Will Give Much More Accurate Spacing On A Domestic Machine The Quilt Is Not Taught As On A Longarm Machine And There Is Movement Of The Quilt Sandwich Which Can Make It Difficult To Use The Rotating Lines On