Specification: For Nordic walking sticks Material: hard rubber Height: approx. 45 mm Inner diameter: approx. 10 mm Color: Black (as pictures show) Weight: 18g / pc Scope of delivery: 20 * replacement feet for trekking poles Made of rubber,very durable, Play a cushioning effect when walking, while avoiding an unpleasant noise on hard ground,have a good decompression effect Used to protect your nails or your sticks, extend its service life.with inside diameter of 10 mm and non-slip bottom booties pattern which increases trekking poles grip Multi-functional use - Be used as trekking pole, cane, crutches and other items for hiking, mountain climbing. Even cab be used on the asphalt or rock surface Super non-slip, can also be used for the elderly indoors or outdoors, so that they are not easy to slip Eco-friendly material - Made of high-quality material, which is odorless, non-toxic; it is also easy to assemble and dismantle