Tanita Study Timer with Strap Vibration Function 24 Hours Black TD-370N BK Color: Black Brand: Tanita Material: AS (Acrylonitrile Styrene) resin, Acrylonitrile Butadiene Styrene (ABS), Silicone Product Dimensions: 55 x 38 x 15 mm Product Weight: 25 grams Size: Width 38 x Depth 55 x Height 15mm Weight: Approximately 25g (including battery, excluding strap) Materials: ABS (Acrylonitrile Butadiene Styrene) resin, AS (Acrylonitrile Styrene) resin, Silicone rubber Set Time: Minimum 1 second, Maximum 23 hours 59 minutes 59 seconds Timer Function: Countdown/Count-up Vibration/Alarm Time: Initial setting 60 seconds (adjustable range/5-60 seconds) Clock: 24-hour system, 6-digit display I am selling this because I bought it but never used it. The battery will be removed before shipping.