What Are Lifting Seats?Lifting Seats keep you active and independent. Electrically powered and self-powered versions provide the right level of assistance based on your individual needs.Safe lift assistance of up to 70% of your body-weight up to 350 lbs.Adjustable weight ranges for custom support that can be used on most armchairs or sofasFor indoor or outdoor use, since they use no batteries or electricityPortable Electric ModelsGentle, lift for those up to 300 lbs.Can be used on most armchairs or sofasEasy-to-operate and can be stopped at any heightLift seat cushion is made of firm memory foamSpecification:Name: Portable Lifting CushionCushion material: high-density polyurethane foam spongeLoad-bearing: 290 kgBottom width: 45 cmSeat depth: 50 cmStretching height: 10-24 cmFolding size: 45×50×10 cmPower cord length: 285 cmNet weight: 6.2 kg