Ayu Tabi (Wading Shoes) / Isogutsu (Rock Fishing Boots) / Long Boots - Modification Spike Tire Pins 100 pieces Unused, New Size: M4 x 12mm These spike pins are for car tires, but also work for Ayu Tabi, long boots, etc. Simply screw them in with an M4 hex box wrench. For felt shoes, applying a few drops of Aron Alpha (cyanoacrylate adhesive) around the pins will secure them firmly. For reference, photos 4-5 show my Ayu Tabi. 50 pieces are also available for 1300 yen, which is about enough for one pair. #AyuTabi #Ayu #Ayufishing #Feltshoes #Isogutsu #Longboots