I have not used this item since purchasing it. I am selling it to someone who needs it since I have no plans to use it in the future ^ ^ Retail price: 6,820 yen Basic micro crampons, 6 points, perfect for snowy roads. - Brand: mont-bell - Model name: SNOW SPIKE 6 - Size: 21.5-30.0cm - Features: Basic micro crampons, 6 points Thank you for looking.