Discover the revolutionary Scratchnomore Footfixx Hollow, your ultimate protection solution for precious floors. This innovative solution is specially designed to keep your floor scratch- and streak-free. The unique design ensures that this chair leg cap fits a very wide range of inner dimensions (10mm to 30mm). An additional advantage is that you can easily change the protective feet. This means you only need to mount the base parts once in the chair leg. These floor gliders are also suitable for angled legs up to a maximum angle of 30 degrees.The furniture will be raised by a maximum of 25 mm. Do you already own base parts? Then quickly check out the Scratchnomore Footfixx replacement protective feet. Easy to install:Installing the Scratchnomore Footfixx Hollow is surprisingly simple. You place the base part in the hollow tube of the leg, after which it is tightened with a cordless drill or Allen key. Tight is tight. When you have properly tightened the footfixx hollow, you can click the protective foot onto the ball. Tip: Place the Footfixx protective foot on the floor and place the chair leg on the foot. Then you can click the foot into the base part by pressing on the chair. Note: For use in square legs, read the measuring instructions below carefully before ordering! Choose the right size:Round TubeMeasure the internal diameter of the tube with a caliper. Inner Diameter (mm) Size 10-14 Small 14-21 Medium 20-30 Large Square TubeMeasure the internal dimensions of the tube with a caliper. Use the inner length and width, but also measure the opposite corner. Inner Dimensions (mm) Size 10x10 tot 13x13 Small 14x14 tot 18x18 Medium 19x19 Medium* 20x20 tot 26x26 Large 27x27 tot 30x30 Large* *Apply foam tape or other padding around the base part so that the inner dimensions become smaller and the base part stays in place in the hollow leg. Note: Chair legs with a bend or curveDo you have a chair with a chair leg that has a bend after a few centimeters? Then it is important to measure the depth of the leg up to the bend. The base part of the Small is 30 mm long. The base part of the Medium is 36 mm long. The base part of the Large is 52 mm long. Not to be used with teardrop-shaped, oval & rectangular legs.Although the Footfixx Hollow is ideal for round and square hollow legs, it is not suitable for teardrop-shaped, oval and rectangular legs. For these shapes, Scratchnomore offers alternative solutions such as the Footfixx Wood. This can then be screwed into the current plastic. Maintenance:The protective caps are easy to clean with a vacuum cleaner or brush. It is also possible to clean the caps with a damp cloth.The dirt can be removed and the pile of the carpet will recover.