XUANWU 3 or 4 Wheel Convertable Speed Slalom Skates

XUANWU makes these 3 or 4 wheel convertible  inline speed slalom skates in adult sizes.  They have alloy skating frame that can use up to 4X80mm or up to 3X110mm wheels. Shoe Width: Medium(B,M)Outsole Material: PlasticFeature: BreathableUpper Material: PVCInsole Material: EVAClosure Type: Lace-UpGender: MenRelease Date: Spring 2016Fit: Fits true to size, take your normal sizeLevel Of Practice: AdvancedLining Material: SyntheticFrame: Alloy 3x110mm / 4x80mm skating frameWheel: 4X80mm Max or 3X110mm Max