Stalwart 82-43752 Mobile Roller with 4 Locking Wheels-Heavy Duty Furniture and Appliance Portable Adjustable Base Rolling Dolly Cart ADJUSTABLE CARRYING SIZE- Not all items that you need to move are going to be the same size. Being able to adjust down to 21 x 21, you can effortlessly roll a wide variety of items through your house on this portable push dolly. DURABLE BUILD- Built with sturdy PVC pieces and stainless-steel poles, this dolly has a weight limit of a hefty 220 pounds, making moving large furniture or appliances like washing machines and dressers fast and effortless. ROLLABLE CART- Sitting on top of 4 rubber swivel wheels, this dolly roller can be moved across any smooth flooring with little effort. When you want the cart to stay still, two wheels lock with a flip of a switch to ensure the dolly wont move unexpectedly. PRODUCT DETAILS- Dimensions: Maximum, 31 (W) x 31 (L) x 3.75 (H). Minimum, 21 (W) x 21 (L) x 3.75 (H). Weight Limit: 220 pounds. Includes: 4 Rubber Swivel Wheels, Two Locking Wheels, 4 Sturdy PVC Corner Pieces, 4 Sturdy Stainless-Steel Poles, and 1 Tape Measurer. SATISFACTION GUARANTEED- Stalwart is committed to providing consumers with the absolute best price and value on our entire line of products. NOTE: This is an exclusive product of Stalwart and ONLY Mobile Dolly by Stalwart are GUARANTEED to be genuine.