1-conductor connection sleeve suitable for all 1-conductor plastic cables. Enables the connection of cables of different cross-sections and conductor materials, even with different cable designs in terms of conductive layer and shield design. Suitable for press connectors. Areas of application: Indoor, outdoor, soil, water, installation ducts. Properties: Safe field control through permanently elastic silicone field control elements, for both Cu and Al conductors for all cables with copper wire or tape shield, large line and cable cross-section range, quick, easy and safe installation, ready for immediate use. Scope of delivery: Thick-walled heat-shrink insulating tubes, thick-walled heat-shrink outer tube with thermoplastic adhesive, silicone field control elements, copper fabric tube, roller springs, field-controlling blue filler tape, small assembly materials, assembly instructions.