10 PK- Triangle Style Commercial Top Bar Frame. These pyramid shaped top bar frames are used in foundationless beekeeping. Most beekeepers using this type of frame apply a small bead of wax along the point of the top bar to help guide the bees to where to start making the natural comb. Choose Deep Frames for use with 9-1/2" Deep Hive Bodies or Medium frames for use with 6 5/8" Medium Boxes. Pack of 10 frames includes top bars, side bars, and bottom bars. Frames are unassembled.