3 sectioned folding design allow easy storage and transportAdjustable rear roller allows for use with bike from 20` BMX up to 700CDetachable foot step increases safety while mounting and dismountingRollers fontain noise insulators for quiet operationWheelbase adjustable from 775mm to 1090mm80mm roller drum generated natural resistanceRustproof, lightweight alloy constructionRollerw/ Step GuardAlloyGun Metal20` - 700CUPC/EAN/GTIN: 4944924407643