ZETA Racing Armor Handguard Bar End Plugs. Bar end plugs for ZETA Racing Armor hand guards. Prevents mud, sand, etc. from entering the throttle tube when tipping over, reducing throttle problems. Compatible Armor Handguard: Pro Armor Hand Guard. Armor Handguard Vented. Armor Handguard Straight. Color: Titanium color. Size: Diameter - 32 mm, Thickness - 11.5 mm. Material: Body - High-strength aluminum alloy, Attached bolt - Stainless steel. Surface treatment: Anodized finish.