This sport stopwatch and whistle kit is made of , which can withstand use. The whistle, sturdy and durable, a clear sound to keep people and alert. Features the ABS material, which has high durability, not easy to deform. Fine workmanship, ensures practicality. Features -Color:Assorted Color -Material:ABS -Size:8.00X6.00X2.20cm/3.14X2.36X0.86in -Battery: -This digital stopwatch timer can be used to time 100m races for accurate measurements, wake you up as an alarm in the morning. -Use its split time feature to accurately measure multiple events, and give it as a refined birthday present to your friend. -Perfect for timing use, such as cooking, sporting, taking exam, baking, etc. Feature with smooth surface and comfortable hand feeling, easy to store. -Every detail is carefully crafted, experience the high durability and practicality. -The whistle, strong and durable, a clear sound to keep people and alert. Package list: 1 x Stopwatch 1 x Whistle