This is an item perfect for long car rides, etc. It's an anti-motion sickness wristband that can be used with motion sickness medication for even greater effectiveness. It alleviates the discomfort caused by nausea for pregnant women experiencing morning sickness and reduces motion sickness on airplanes, ships, and other vehicles. The protrusions on the inside of the band press on the acupoints for motion sickness, preventing nausea and vomiting. Be sure to wear on both wrists. There are no worries about side effects, so it can be safely used by small children and pregnant mothers! [Color] Black 2 sets of 2 for both wrists, total of 4 pieces [Material] Acrylic nylon rubber (washable) [Condition] No noticeable stains Tried on once, washed item Scheduled for anonymous shipping via Yu-Packet Post mini Please no claims, no returns. Thank you.