Description: 【Material】: These Rowing Machine Bearing Wheels are made from premium plastic material, ensuring durability and the ability to withstand high usage pressure. This guarantees the stability of your fitness equipment. 【Smooth Operation】: The pulley wheel design allows for smoother operation of abdominal machines, improving workout efficiency and making your exercise routine more comfortable. 【Feature】: With high hardness and wear resistance, these bearing wheels have a long service life. They operate with low noise, stable performance, and high load capacity. 【Versatile Use】: These bearing pulley wheels are suitable for use as replacement parts on rowing machines, abdominal machines, and other fitness equipment with guide rail pulleys. 【Product Details】: The package includes 4 Bearing Wheel Replacement each measuring 2.98cmx5.3cm/1.17inchx2.09inch in size. Size Chart: 2.98cmx5.3cm/1.17inchx2.09inch Package Includes: 4 Rowing Machine Bearing Wheels Note: Please allow slightly errors 1-2cm differences due to manual measurement.