While the protruding handle end is shaped as a hammer surface

The weight of the glasses has been reduced to under 30 g

the goggle set is stored in a black storage box with a 2-way zipper and carabiner

Der abnehmbare Schultergurt und die an beiden Enden festgemachten Tragegriffe können bei Nichtgebrauch platzsparend um den Boden gewickelt werden

a base part

Adapter Fahrradbeleuchtung Bike Adapt Brillenzubehör While the protruding handle endThe Bike Adapt mounting system allows you to attach a Petzl headlamp to a bicycle handlebar or a seat post with a diameter between 22 and 30 mm. Note: When used in areas covered by road traffic regulations, Petzl lamps do not replace the legally required bicycle lighting. Suitable for the Petzl headlamps TIKKINA, TIKKA, BINDI, ACTIK, ACTIK CORE, TACTIKKA, TACTIKKA + and TACTIKKA+RGB Diameter: 22 x 30 mm