1. Ultra-smooth: With the GleitGut pulleys, it is possible to move furniture, including heavy ones, with relative ease. 2. Floor protection: The furniture pulleys with Teflon sliding layer from GleitGut can help prevent the floor from getting scratched. By simply assembling them with nails, a relatively firm fixation can be ensured, reducing the need for frequent replacements. 3. Reduce annoying noise: Thanks to the built - in rubber cushion, the Teflon pulleys with nails have a shock - absorbing function that can reduce the noise generated when moving furniture. 4. Compact and practical: The furniture pulleys are equipped with a metal base plate, making the Teflon foot pads relatively stable and not easily damaged. The material of this nail - mounted Teflon pulley is weather - resistant and durable, so it can also be used outdoors. Pulley head diameter: 19 mm | Height: 4 mm | Package contents: 24 round pulleys