You are in the freewheel protectors for Trial and Biketrial bicycles.
Original Hashtagg brand bashguard. Compatible with Kabra, Play and Koxx modelos (see description). Made in high quality aluminium 6061-T6. Engraved lower side for better grip. Includes all screws, spacers and rubber necessaries to install. Black anodised. It weights 92 grams (including bolts, spacers and rubber).
Brand: HASHTAGG