... 1,Four Colors Ball Pen. 2,Classic Eight-Square Barrel 3,Very Easy to Choose or Change the Color of Refill Multi-Function ... . Use:Writting,Gift & Promotion,Advertising3. Type:Click/Multi-Color ball pen4. Material:Brass5. Surface Treatments: Barrel ... Black/Blue/Red/Green10. Available Tip Ball Size: 1.0/0.7/0.511. Size: L/W ... .5/13mm12. Weight:18 Gram13. Standard Packaging: 1 pc/ opp bag,50 pcs/inner box,500 ...