uxcell Desk Table Hole End Cap Cover Pipe Tube Inserts Tidying Tool 12mm Dia 30pcs Color: Burgundy; Total Size: 15 x 7mm/0.6" x 0.3" (D*H) Material: Plastic; Net Weight: 12g Package Content: 30 x Tube Inserts; Product Name: Tube Insert Battery Included: No; Inner Diameter: 11mm/0.43" Thread Diameter(Each): 12mm/0.47"