This 5 angle tool is for making lampshades or boxes. Each kit contains 5 pieces of 8" high aluminum forms and one round rod. Sizes: 1 - 90° angle = Create 4 sided lamp shade 1 - 120° angle = Create 6 sided lamp shade 1 - 135° angle = Create 8 sided lamp shade 1 - 140° angle = Create 9 sided lamp shade 1 - 150° angle = Create 12 sided lamp shade