High quality materials guarantee, the Glow Light Sticks were made of ABS+PET. Safe and non-toxic. ABS material in the impact resistance, heat resistance, low temperature resistance has a strong advantage, you can bring it to any lively scene, do not need any security concerns. Dazzle the night with 15 colors, more brilliant, including red, blue, yellow, orange, purple, green, pink, etc. Two Flashing Modes - Steady on, color automatic/manual changing. (Visible distance 500M to 800M).