Fun Central I533, 12 Pcs 9 Inches Assorted LED Light Up Spike Bracelets, Party Bracelet, Glow in the Dark Bracelet, Flashing Multicolor Bracelet, Glow Bracelet for Concert, Rave and Disco Party SIZE: LED Spike Bracelet measures 9 inches long. FEATURES: Our LED Light Up Spike Bracelets are lightweight and made from durable rubbers. Its very easy to use since it comes with a switch to turn on the Led lights. PERFECT FOR: Our LED Light Up Spike Bracelets is perfect accessory to pull off an edgy look. This is also great for rave parties, Glow in the Dark Party, Disco Party, Retro Party, Halloweens and many more. INCLUDES: Each box contains 12 pieces of assorted spike bracelets. The batteries are also included and installed. MANUFACTURING: LED bracelet is non-toxic and CPSIA Complaint.