The package includes a single wheel coupled with a bearing.
Superior Locking Performance with T2-T10 3D Printer Parts - Lead Screw Lock Collar and Block Isolation Column Ring
$5.99 – $6.49
3D Printer Aluminum Synchronous Wheel - H-Type Pulley, 16/20 Teeth
$5.99
High-Quality D-Type Engraving Machine with POM Bearing Pulley
$5.99 – $6.49