Abstract: An adhesive tape pack, in which an adhesive layer (3), preferably a hot-melt adhesive layer, is arranged on at least one carrier element (2). In order to provide adhesive tape packs of this type with tape sections (5), which can be easily separated from one another, the present invention provides for providing the carrier element (2) with notches (4) transversely to the longitudinal direction of the tape, which cut through the carrier element (2), but not the adhesive layer (3). In this way, the tape sections (5) are held together by means of the adhesive layer (3) and can be separated by lightly cutting through the adhesive layer (3) along the notches (4).

Abstract: A roller skate undercarriage including a roller carrier having three or more pairs of rollers attached by screws to the upper structure of a roller skate or to the blade of an ice skate. The carrier has holes, one group of holes at the front, one group of holes at the rear and one hole between the front and rear groups to hold roller hubs. The center axes of the holes in the carrier and of the axle pins inserted through them are staggered with respect to the central axes of the roller hubs mounted on the axle pins so that the height of the rollers may be changed with respect to the roller carrier by turning the roller hubs. In this way the roller skate can be individually adapted to the user and the purpose of use.