This commercial-grade heavy-duty furniture leveler stands out with its exceptional load-bearing capacity, flexible adjustability, floor protection and easy installation process. Each leveler is equipped with a sturdy steel T-nut for locking and stabilization, with a maximum weight capacity of 330 lbs. per unit, supporting up to 1320 lbs. for a set of 4. It is suitable for various heavy furniture such as cabinets, tables, beds, workbenches, sofas and chairs. Featuring a 1.77 in. adjustable shaft with a universally used 3/8 in. thread, it allows for a fully adjustable height range from 3/4 in. to 1-3/4 in. to meet your specific needs. The included felt pads on the base prevent direct contact between furniture legs and the floor, protecting the floor, tiles or carpets from damage. Installation is straightforward, requiring only pre-drilling a hole, inserting the T-nut and tightening the screws. Additional accessories such as felt pads, T-nuts, screws and a small wrench are also included for a hassle-free installation experience. Material: Metal.