Healthline's 5" Tente Casters contain 4 per set. With 2 locking and 2 non-locking wheels. These are the best quality casters on the market; a super asset to any wheelchair.
Tente casters give extra structural support, and allow ease of movement on hard surfaces. They also help to prevent wheels from falling into cracks.
Non rust: Made from durable PVC plastic, casters are rust-proof.
Rubber tires: With soft, non–marking gray rubber tires. Does not leave black marks or vinyl grooves.