Prism Spiderkites Vertex BolBright, bold, and mesmerizing in motion, the Vertex Bol from Spiderkites is a surefire crowd pleaser. Spanning four feet across, this colorful bol bounces, rolls, and spins in the breeze, creating a playful display of motion and color. Clip the included tow line to a sand anchor and watch it float and tumble in the wind. Tie it to something sturdy and watch as the hypnotic spiral transforms the breeze into flowing motion thatll attract a crowd