Gymboss Interval Timer Stopwatch Accessory Pack You receive four brand new items: 1 Gymboss Armband, 1 Wristband, 1 Skin, and 1 Lanyard. All four items are compatible with all Gymboss Models with a removable belt-clip. NOTE - THIS LISTING IS FOR THE LISTED ACCESSORIES ONLY. TIMERS ARE SOLD SEPARATELY Armband - Made of a durable elastic with a velcro closure. Elastic velcro 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.