Gymboss Interval Timer and Stopwatch Accessory Pack Kit This combo pack contains 5 brand new items - 1 Gymboss Interval Timer and Stopwatch + 1 each of Gymboss Armband, Wristband, Skin, and Lanyard. It makes a perfect gift for any fitness enthusiast! Compact interval timer times one or two intervals between two seconds and 99 minutes. Built-in Stopwatch and Clock feature. Secure and Removable Belt-clip included. Auto mode keeps repeating through intervals. Chime and vibration interval notification; alarm duration can be set for one, two, five, or nine seconds. See full details in description below. Armband - Made of a durable elastic with a Velcro closure. that stretches to fit any bicep, calf, etc from 9-19 inches. Width - 1 inch. Wristband - Elastic Velcro stretches to fit any wrist from 6-12 inches. Width - 1 inch. Lanyard - Quick release clasp. Easily and totally removable. Secure back loop connection. Material - Nylon. Silicone Skin - Thin, yet protective. Increase Water Resistance and Shock Protection in case you drop your timer or get it wet with sweat. Fits models with a removable belt clip. Please note the skin does not make the timer waterproof, but more water resistant. You cannot submerge your timer underwater, even with the skin on.