Flashing Panda Flashing LED Tentacle Noodle Top Hat, Assorted Colors Available colors: Blue, Green, Pink, Red Hat Dimensions: 12" wide x 8" high Uni-size hat fits all comfortably Dangling fun tentacles; Dozen tentacles flash bright with LED's On/Off switch on the battery pack inside hat; Easy to replace button-cell batteries, takes 4 LR1130 / AG10 cells