Packaging includes: you will receive 4 pieces of hand buzzers, cute and funny, can meet your various needs, you can also share them with family and friends, make a hit party with this classic hand buzzer Lightweight and adorable: made from reliable PP plastic, non-toxic and harmless, lightweight and durable, simple yet adorable design, these joy buzzers can last for long time Mini size: plastic hand buzzer is about 3.5 cm/ 1.38 inches in diameter, can be secreted in the palm, making your pranks more difficult to be found Simple to use: you only need to rotate the hand buzzer in advance, and then put it on your hand, it vibrates when shaking hands, which can increase more fun in life, also can entertain the public to be happy and laugh Prank toy is a nice gift choice: buzzer ring jokes are safe and fun to play with, you can hold it in hands and play a joke on someone, ideal for April Fool's Day, Halloween, festivals and daily mischief; Small hand buzzer can be applied in school, company, family, party and anywhere, also interesting gifts to friends and family, which will bring you more laugh 4 Pieces plastic hand buzzer wind up hand buzzer ring jokes novelty practical jokes tricks prank gag toy for girls boys Steps for usage Step 1. rotate the hand buzzer clockwise Step 2. put the hand buzzer on your hand and hide it in the palm of your hand Step 3. press the switch when shaking hands, the hand buzzer will start to vibrate Scope of applications: Hand buzzer in small size is light weight and can be hidden in hands and make fun with him, ideal for April Fool's Day, Halloween and daily mischief, you can use it in school, company, family, party and anywhere. Add laugh to your life: Hand buzzer will vibrate when you shake hands, which can add more fun to your life, also is a nice gift for friends and family, this cute prank toy will bring more interesting and make them laugh. Specifications: Size: 3.5 cm/ 1.38 inches in diameter Color: as shown in the figure Material: plastic Package includes: 4 x Plastic hand buzzers Warm note: Manual measurement, please allow slight errors on size. The colors may exist slight difference due to different screens. Suitable for people over 12 years old.