High-quality zinc alloy material adjustable furniture risers are made of zinc alloy and carbon steel. High-quality felt floor mats can be moved freely without damaging floors and furniture. This reduces noise, is rotatable and height-adjustable, and is ergonomically designed. Add 7-10 cm of adjustable risers to increase the height by 7 cm. Turn counterclockwise to increase to 10cm. Turn clockwise to reduce to 7 cm. The direction and height can be adjusted freely, and the sitting posture and line of sight can be adjusted. No need to worry about the hunchback problem caused by the chair being too short. 45° rotating design The chair riser can be freely adjusted to 45°, so you don’t have to worry about uneven ground, solving the problem of tilting traditional chairs. The side screws hold the legs firmly in place and the chair can be moved around without falling. Suitable for 4-piece chair legs with a diameter of 3-4 cm, length 5 cm, width 5 cm, height 10 cm, load capacity 200 kg, suitable for furniture legs with a diameter of 3-4 cm, not suitable for smaller furniture legs larger than 3 cm. Larger than 4cm, it can be used in restaurants, offices, bedrooms and living rooms, etc. Installation steps 1. Keep the furniture legs dry and clean, and put them into the foot pads. 2. Use the tool to tighten the screws. 3. Fasten all screws and chair legs one by one. 4. Check the stability of the chair before use.