The necklace watch comes with a long rubber strap that can be worn around your neck or folded down and kept in your pockets. It weighs about 0.9 ounces and comes in customized different colors. This watch uses quartz movement technique that measures vibration in a quartz piece that is powered by a battery. Made from silicone material, measuring 11.8 * 1.6 inches, this custom necklace nurse fob watch. Usage Scenarios: Office supplies, school stationery, corporate promotions, trade show giveaways. Customization available: Print your logo or customize packaging and color schemes. Product Highlights: Portable, durable, practical for daily use.