Control the height of your heavy lab ware products with these scissor jacks that feature ultra stable lifting platforms with exceptional strength. The optional support Kit allows you to mount a 17 inch L vertical support rod to the upper deck —ideal for when you need to mount various items such as a thermometer, clamps, temperature probes, or flask clamps. Durable heavy-duty lab lifts offer an optional ratchet tool for heavy lifting with little effort constructed of 300 Series stainless steel. Oversize grip adjustment knobs. Can be autoclaved or chemically cleaned.