Thank you for viewing! Ice spikes, size M (22-25cm), to support safe walking on ice and snow. - Size: M (22-25cm) - Cold resistance: -40℃ - Product name: ICE-SPIKE Purchased during the Sapporo Snow Festival this year and used only for a short time at night. I was able to walk without slipping and with peace of mind. Please refrain from purchasing if you are looking for a perfect item, as it is stored at a private residence.