Abstract: An exercise device has a base, a support for the axle of a manually drivable wheel of a cycle, a roller bearing against the wheel, and movable holding bodies for mounting the roller with respect to the support. The bodies are located in holders in selected rotated position about a center and hold the bodies against rotation. Axle means extend between the bodies and carry the roller, the axle means being eccentric with respect to the center of the bodies. The bodies are selectively located by placing them in the holders at selected rotated positions, which position the roller at selected distances from the support. In this manner the frictional resistance against turning imparted to the wheel and the roller may be selectively varied.

Abstract: Thermoplastic composition for the manufacture of transparent and flexible articles, such as containers, bags and flexible tubes, coming into contact with parenteral liquids essentially consists of 60 to 95% by weight of at least one chlorinated polyolefin and 5 to 40% by weight of at least one copolymer of butadiene, styrene and an acrylic acid or a methacrylic acid ester.