Mother-in-law's Tongues, 28cm long, in a pack of 100 units, reference 53002, are rollable party whistles that unroll when blown. This is the classic party toy associated with birthdays and celebrations, which makes a characteristic sound when blown. With 100 units, it is the ideal option for larger parties or events with many guests, preventing you from running out of whistles mid-celebration. It's a great choice for livening up group parties with a timeless classic.