The item you are asking about is a set of accessories designed to improve the performance and stability of home appliances.

Here is a breakdown of the product and its common features:

FeatureDescriptionProduct TypeAnti-vibration Washing Machine Stand / Feet Pads (Set of 4 pieces)Quantity4 pieces (one for each foot of an appliance)ColorGreyPrimary FunctionVibration & Noise Reduction: Absorbs the shaking and movement, especially during the spin cycle, to make the washing machine significantly quieter.Secondary FunctionFloor Protection: The rubber/plastic material protects your floors (tile, wood, or linoleum) from scratches, scuffs, and damage caused by a walking or vibrating appliance.Anti-Walk/SlipDesigned with a non-slip or suction-cup base to keep the washing machine or dryer stable and prevent it from "walking" across the floor.Lifting/HeighteningThey raise the appliance slightly, which can make it easier to clean the floor underneath and help protect the machine's feet from moisture.MaterialTypically made from heavy-duty rubber, durable plastic (like ABS), or a combination of both.CompatibilityUniversal fit for most washing machines (top-load and front-load), dryers, and other heavy appliances or furniture (refrigerators, sofas, etc.).InstallationEasy to install; simply lift the appliance and slide a pad under each foot. No tools or adhesives are required.