Spare Rings pack is for use with the System-Enterprises RX-1001 RingStix Pro Edition. Each Spare Ring pack contains 1 Glow-In-The-Dark Ring & 1 Red Ring. The yellow ring glows in the dark when held to a light source. The duration of the ring glowing depends upon the strength of the light source and the duration to exposure to the light.
- Recommended for ages 10 & up.