Tappo elastico in gomma silicone nero 3 mm ~ 14 mm tappo in gomma a forma di T per tubo
Size(A):3mm 3.5mm 4mm 4.5mm 5mm 5.5mm 6mm 6.5mm 7mm 7.5mm 8mm 8.5mm 9mm 10mm 11mm 12mm 13mm 14mm. --Material: Silicone Rubber. which leads to the actual price may be more expensive or cheaper than the price in the link, hope you can understand.