Abstract: A pair universal in-line skating shoes is provided. The skates comprise a front base, a rear base, a shoe body, a number of wheel assemblies and two length-adjusting members. The length-adjusting members are replaceable. Two ends of the length-adjusting members are connected to the front base and the rear base respectively. When a user needs a pair of skates with a greater length, there is no need to purchase a new pair because the length of the old pair of skates can be increased through a replacement of the length-adjusting members. Optionally, an additional wheel extension plate having at least one hole for adding other wheel assemblies can be added to the front end of the front base.

Abstract: An in-line skate comprises a plurality of replaceable rollers, a skate frame, and a shoe body. The skate frame includes a pair of lateral blades and at least a connecting plate that fixedly fastens the lateral blades parallel to each other. The shoe body further is fixedly attached on the connecting plate. Each lateral blade includes a plurality of roller-mount through holes distributed into a plurality of hole-sets. Each hole-set corresponds to a specific mounting configuration of the rollers to the corresponded through holes, and the hole-sets are distinct from one another by not having at least one common through hole. The in-line skate is thereby suitable for diversified types of skating practice such as leisure skating, hockey skating, and figure skating.