Customizable weight management system designed to enhance comfort and reduce neck strain. (5) 70g removable weights and (5) elastic pockets. Total weight system is 0.85lbs (385g). Elastic pockets can stretch to fit (2) weights or (1) weight and (1) battery (AA, AAA or 123). Mounts to the rear of the helmet with custom anchors using the existing helmet holes with longer ballistic screws (provided). Rear VELCRO® brand fastener attachment ensures motion free and secure positioning. Chemlight window and the patch with VELCRO® brand fasteners for Glint tape for use with low light IFF. Durable construction. Compatible with Sentry and FAST helmets. Currently available in urban tan, foliage green and black.