●【Roll Heavy Equipment with Ease】 - Without built-in wheels in heavy equipments, moving it from this side of your workspace to another could prove to be a real trial. When 4 Nefish leveling casters are placed underneath the equipment, youll be able to roll it to its destination, possibly by yourself. ●【Upgraded Handle Design】- The height of Nefish leveling machine caster can be adjusted by upgraded handle. If you are using delicate lab tools, you might want to ensure each employees perfect position that uses it. A leveling caster can go up or down, moving the equipment its attached to along with it. ●【Absorb Shocking and Reduce Vibrations】 - Nefish black leveling plate caster wheels are made of rubber pads, stainless steel stamping top plate, aluminum body. Once leveling casters are installed, the rubber pads can absorb the vibrations from the device while its in operation, This could lead to a safer work environment or, at the very least, a quieter work environment. ●【WIDE APPLICATIONS】- Nefish retractable casters uses an anti-vibration rubber pad to secure it to the floor. Once the pad is lowered, the application will not move. Unlike a locked swivel caster, the pad won’t wobble and will remain stable. Suitable for heavy workbench, kitchen island, machine equipment, medical machinery, communications equipment, heavy furniture, cabinet etc. ●【Premium Service】- To ensure the casters quality, we will arrange personnel to carefully check the products, only the passed the inspection can be delivery. If you are not satisfied, well give you a 100% refund within 60 days of purchase. 1-years warranty, quality problems, only change, no maintenance