VORTEX RUBBER BARPLUGZ - Features: Unique design made of Krayton rubber, fit on regular, 9, 11 & 13 butt bars. - Material: Krayton Rubber. - Colors: Black, Dark Blue, Gang Green, Glow in the Dark Green, Neon Orange, Neon Pink, Neon Yellow, Purple, Red, White, Bright Blue and Caribbean Green. - Weight: 0.6oz. per pair.