Roller skates with a replaceable ice knife, which are designed for beginners and intermediate users.The aluminum chassis is fitted with soft PU wheels. The outer shoe can be adjusted to four sizes at the touch of a button, this solution allows precise adjustment to the size according to current needs, or is used as a "growing shoe" that "grows" along with the kid's foot. At the tip are ventilation holes for maximum breathability. The inner shoe is made of a combination of suede, MESH mesh, EVA and high density foam. The fastening is solved by a classic three-combination - lacing, a velco strap and a two-section buckle. The package also includes a pair of ice knives, which are made of high-carbon stainless steel. Parameters: Winter skate knife: stainless steel In-line skate rail: aluminum Shoe: semi-soft Outsole: profiled, high density foam Fastening: two-section buckle velcro strap lacing Wheels: PU 64 mm / 82A (size S) PU 70 mm / 82A (size M) PU 72 mm / 82A (size L) Age Group: Kids Age Group: Young Adult Bearings: ABEC 7 Brake: Yes Colour: Black Colour: Blue Made in: China Frame: Aluminium Gender: Male Gender: Female Number of Wheels: 4 Wheel Diameter: 70 mm Wheel Hardness: 82A Original Colour by Producer: Black/Blue Size: M Size: 34-38 Size EU: 34-38 Select Size: M Select Size: 34 Select Size: 35 Select Size: 36 Select Size: 37 Select Size: 38.