Nite Ize LED Sport Belt Enter your model number above to make sure this fits. Adjustable waistband fits sizes 30" - 49" Bright Red LED for Active illumination - Glow or Flash Modes Battery Run Time: 200 Hours Adjustable waistband fits sizes 30" - 49" Bright Red LED for Active illumination - Glow or Flash Modes Battery Run Time: 200 Hours Passive High Visibility Reflective Pattern Lightweight, Flexible design - comfortable to wear Weather resistant construction Easily replaceable 3 x AAA Alkaline batteries included Product Dimensions: 36" x 2" x 0.75" | 91.44 cm x 5.08 cm x 1.91 cm Product Weight: 5.57 oz. | 158 g