Simple to make a sound: place the free side up against the palm of your hand, position the vent about 2–3 cm behind the tip of your thumb, then press firmly to produce a sound. Different sounds can be created by adjusting hand position and pressure. Practice improves results. Made from quality rubber material, these sound makers are durable, soft, and safe to use. A slight rubber odor may be present initially but will dissipate when stored in a ventilated area. Minor surface stickiness or static may occur due to the material, but this does not affect performance or safety. Package includes 2 black sound maker devices, ideal for fun and entertainment. Share them with family and friends for added enjoyment. These novelty toys are suitable for use at home, school, the classroom, elevators, and other social settings, providing lighthearted amusement. Great for gifting during holidays such as Christmas, New Year, April Fools’ Day, birthdays, parties, or everyday fun. Create memorable moments with friends and loved ones.