Nightstick Elastic Head Strap w/ Non-Slip Lining Camo. The Elastic Strap with its non-slip lining is designed to be worn directly around the head or on a cap. This strap will work with the following Nightstick Headlamps: NSP-4602B NSP-4604B NSP-4608B NSP-4610B XPP-5450G XPP-5452G and XPP-5454G. Specifications for Nightstick Elastic Head Strap w/ Non-Slip Lining: Manufacturer: Nightstick Color: Camo Fabric/Material: Elastic Nylon Weight: 0.67 oz Features of Nightstick Elastic Head Strap w/ Non-Slip Lining Replacement strap for NSP-4610C Elastic strap with non-slip lining Package Contents: Nightstick Elastic Head Strap w/ Non-Slip Lining Nightstick 4600-ESTRAP-C: Elastic Head Strap w/ Non-Slip Lining Camo