uxcell 300 Pcs Double Sided Armature Black Wire Rubber Grommets Ring 6mm Dia Product Name : Rubber Wiring Grommet;Inner Diameter : 6mm/0.24" Outer Diameter : 12mm/0.55";Thickness : 6mm/0.24" Materials : Rubber;Color : Black Net Weight : 102g Package Content : 300(+/-2%) x Rubber Wiring Grommets