1. Built-in precise micro bearing;
2. SPCC shell with zinc plated;
3. Up-down & Right-left adjustable.
4. Sliding roller.

Built-in precise micro bearing;
Injected with reinforced nylon;
SPCC shell with zinc plated;
Low noise and rolling smoothly;
Up-down & Right-left adjustable;
Elegant appearance and durable resistance.

Roller dimension: 21mm---25mm;
Profile type: Round type, V type, U groove type, etc.