TWO (2) Individual Replacement Kits: Lightweight Helmet 99B10734-4 97427 EACH KIT INCLUDES: One (1) Chin Straps & Two (2) new replacement Headbands for Lightweight (LWH) Marine Corps Helmet (USMC) Size - Large Black and Green Includes instructions (dated 2002): "This Lightweight Helmet Individual Replacement Kit consists of two headbands, a chin strap, and this instruction sheet. The kit allows you to replace the chin strap and the headband when they wear out or become too soiled to clean. These components are changed quickly and easily; no tools are needed." Made of Kevlar, synthetic leather, & velcro, by GENTEX Fast and easy velcro straps and size adjustment. Apparently it will also fit PASGT helmet. Headband measures 23 1/2" long