Expert of Japan Light Aisen Chromoly 6 Piece Set ST30 6 Prong / Fixed Band Type 6 Claw Light Crampons. The worlds only ring less one size fits all. 6 prongs are the lightest in the world. ■The fixing band is structured through the tape hole at the bottom of the frame. The size can be adjusted with a fixed band. Fixed band is worn around the ankle. The crust will not fall off when the band is loose. Even if an accident trouble, a companion with different shoe sizes can be used to save you. ■ The position and shape of the nails have been researched and developed so that they work well with ice and snow. ■ Using the "friction attachment method" that passes the band from the outside of the jump ring or the tricot can make it more stable. ■ A one-size-fits-all chromoly 6-piece set fits perfectly on small shoes. Expert of Japan Light Aisen Chromoly 6P Set ST30 6 Claw Specifications: Material: Chromoly Steel Color: Black Electroplated Coating Size: 6.5 x 3.3 inches (165 x 83 mm); Weight: 13.5 oz (380 g); Claw Height: 1.2 inches (31 mm); Free Size Expert of Japan Light Eizen, Chromoly Steel in the Expert of Japan (EXPERT OF JAPAN)