I bought this new but it was the wrong size, so I haven't used it at all. Product Information: Shimano Geo-Lock Flex Rubber Pin Felt Sole Kit (Medium Round) KT-037Q SHIMANO / Isogutsu (rock boots) / Iso Shoes / Replacement Soles ■ Material / Sole: Geo-Lock Flex Rubber Pin Felt Sole - Medium Round (Polypropylene, Stainless Steel, Slip-Resistant Synthetic Rubber) ● Flexibility in both directions to follow the rocky shore ● Slip-resistant felt sole with slip-resistant synthetic rubber and high-hardness stainless steel pins for improved grip and durability ● EVA compression bonding method to prevent pin wobbling ● Grip on the rocky shore and slip resistance on the boat during ferry transport Product Number: 4969363484444 Shimano Geo-Lock Spike Sole Kit Dark Gray L 25.5 - 26.0 cm When shipping, I will take it out of the clear case and fold the instructions in half. The clear case is not included.