Abstract: A magnetic chuck includes a first cylinder and a second cylinder that are arranged in series with each other. A first piston of the first cylinder includes a permanent magnet, and a piston rod connected to the first piston is inserted into a second piston of the second cylinder. A stopper that can abut against the second piston is fixed to the piston rod. The position of the stopper can be changed relative to the piston rod.

Abstract: The present invention provides a label having excellent barrier property and transparency, wherein contamination of the container and adhesive residue due to the residual monomer in the adhesive layer are suppressed. The label is a label that is used for shrink-wrapping a container body of a resin container by wrapping around a barrel of the container body and heat-shrinking the shrinkable label, wherein the label comprises at least one heat shrinkable base material, a transparent vapor-deposited film consisting of an inorganic oxide, and an adhesive layer, and the adhesive layer comprises an adhesive composition comprising a triblock copolymer having a block structure of segment A1-segment B-segment A2.