The roller walker replacement knobs are essential compatible withmaintaining the functionality of your walker. These star-shaped screw knobs with M6 threads and rubber pads are designed to replace worn-out or broken knobs on your walker. They provide a secure grip and easy adjustment, ensuring that your walker remains stable and safe to use. Ideal compatible withseniors and individuals with mobility issues, these knobs are a must-have accessory compatible withany walker. Features -Color:Black -Material:Plastic,Metal -Size: 8.00X3.00X3.00cm/3.14X1.18X1.18in -Screw standard: M6 -Material: made from durable plastic and metal materials, ensuring longlasting reliability and performance -Easy replacement: designed to replace walker parts effortlessly, allowing users to perform maintenance and replacements with ease -Simple installation: features a hand tightening design that requires no additional tools, making installation quick and convenient -Rubber pad design: equipped with a rubber pad to enhance stability and prevent loosening during use 2 x T Shape Bolt 2 x Metal Washer