Streamlight Rubber Hard Hat/Helmet Headlamp Strap, Black - 61003 Streamlight Replacement Rubber Hardhat Strap (61003)Flexible, comfortable rubber helmet/hard hat strap for use with the Streamlight Trident, Septor, Argo, Argo HP and all other Streamlight headlamps. Ideal for firemen and anyone working in the industrial or construction industries.