Products - Details Plug Stoppers Description: Globe Scientific's polyethylene (PE) plug caps are designed in 11mm, 12mm, 16mm and 17mm sizes and are available in a selection of colors for sample identification. Item No. Description Unit Price Quantity Add to Cart 118139 Cap, Plug, 12mm (Assorted Colors Available) Pack of 1000 $13.40 116142 Cap, Plug, 16mm (Assorted Colors Available) Pack of 1000 $22.60 116132 Cap, Plug, 16mm, High Grip, White Pack of 1000 $27.00 116160 Cap, Plug, 17mm, White Pack of 1000 $43.20 6263 Cap, Plug, for 15mL Centrifuge Tubes # 6265A & 6266A, Blue Pack of 1000 $52.90 112430 Cap, Plug, 11mm, Natural Pack of 1000 $22.50