Fenix Helmet Headlamp Hooks Black. ALD-02 consists of four plastic hooks which are designed to prevent the headband from slipping off the helmet and with easy assembly. It is also made with environmentally friendly PC material Note: Fenix model compatibility: HM23 V2.0 HM50R V2.0 HM60R HM60R V2.0 HM61R V2.0 HM65R HM70R HM71R HM75R HP16R HP25R V2.0 HP30R V2.0 WH23R. Not compatible with headlamps using the SPORT headband i.e. HL18R-T HL32R-T or HM65R-T. Specifications for Fenix ALD-02 Helmet Headlamp Hooks: Manufacturer: Fenix Color: Black Fabric/Material: PC Weight: 1.41 oz Package Contents: Fenix ALD-02 Helmet Headlamp Hooks Fenix ALD-02: ALD-02 Helmet Headlamp Hooks Black