Funny bird whistles are made of metal material, safe and useful, lightweight and portable to play with. The bird call whistles are also lovely present for your friend, girlfriend, boyfriend, wife, husband, daughter, or beloved people during special festivals. Features -Color:White -Material:Metal -Size:2.80X1.90X0.10cm/1.10X0.75X0.04in - Made of metal material, our bird whistle is strong and portable, can accompany you for a extended time. - This tongue whistle is a funny accessory, practice to master the skills, similar to whistling. - Funny tongue bird whistle, practice more, can let you make awesome sound effects. - Tongue whistles can be used as party favors present choice for your friends, families and colleagues. - the tongue, let the whistle get moist in the mouth, push it to the roof of your mouth with your tongue and say the words. Package list: 4 x tongue whistles