STABLE WEIGHT Bearing: Made of high quality material with built-in steel balls, it is incredibly sturdy and durable. A single wheel can carry a load of 27.5 pounds, and four wheels together provide a maximum weight capacity of 110 pounds. You can also add more wheels as needed. Smaller wheels 't get crushed, even within the weight capacity. SMOOTH MOVEMENT - 360 DEGREE SWIVEL: Mini swivel wheels with small coefficient of friction allow smooth movement with a gentle push. No matter how you want to rotate the furniture, 360 degrees without dead angle makes you more relaxed. Quick and easy to install: just peel off the backing paper and stick the paste wheel on the bottom of the appliance or furniture. It is recommended to let it sit for 24 hours after sticking for better results. Makes moving appliances or furniture quick and easy, no drilling required, no damage to furniture. Widely used: self-adhesive pulleys are not only suitable for a of kitchen appliances, such as air fryers, coffee makers, stand mixers, toasters, microwave ovens, etc., but also suitable for a of furniture and , such as storage bins, garbage cans, plant shelves, under-the-bed storage drawers, small toolboxes, dressers, small printers, toy boxes, etc. Colour:As Shown Material:plastic+metal Package Contents: 12 x Pulley Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.