200pcs 3mm Thickness Silicon O Ring Gaskets 10/11/12/13/14/15/16/17/18/19/20mm OD Rubber O Rings Seals Washers Grommets Mannequin Exterior Dia. Inside Dia. Thickness Materials Colour Hardness Temperature Vary Package deal 10x4x3mm 10mm 4mm 3mm Silicon Pink 55 -35℃~200℃ 200pcs 11x5x3mm 11mm 5mm 3mm Silicon Pink 55 -35℃~200℃ 200pcs 12x6x3mm 12mm 6mm 3mm Silicon Pink 55 -35℃~200℃ 200pcs 13x7x3mm 13mm 7mm 3mm Silicon Pink 55 -35℃~200℃ 200pcs 14x8x3mm 14mm 8mm 3mm Silicon Pink 55 -35℃~200℃ 200pcs 15x9x3mm 15mm 9mm 3mm Silicon Pink 55 -35℃~200℃ 200pcs 16x10x3mm 16mm 10mm 3mm Silicon Pink 55 -35℃~200℃ 200pcs 17x11x3mm 17mm 11mm 3mm Silicon Pink 55 -35℃~200℃ 200pcs 18x12x3mm 18mm 12mm 3mm Silicon Pink 55 -35℃~200℃ 200pcs 19x13x3mm 19mm 13mm 3mm Silicon Pink 55 -35℃~200℃ 200pcs 20x14x3mm 20mm 14mm 3mm Silicon Pink 55 -35℃~200℃ 200pcs *Comment:Portionscould have ±5% tolerance. Listed below aredifferent sizes of Pink Silicon Rubber O Rings Seals. Please Click on the Exterior Diameter. Thickness Exterior Diameter 1mm 4mm~14mm 15mm~25mm 26mm~35mm 1.5mm 4.5mm~9mm 9.5mm~18mm 19mm~28mm 29mm~42mm 2mm 6mm~16mm 17mm~27mm 28mm~38mm 39mm~50mm 52mm~75mm 77mm~120mm 2.5mm 7mm~16mm 17mm~26mm 27mm~36mm 37mm~46mm 47mm~65mm 68mm~105mm 110mm~150mm 3mm 10mm~20mm 21mm~31mm 32mm~42mm 43mm~58mm 60mm~95mm 100mm~150mm 155mm~200mm 3.5mm 12mm~22mm 23mm~33mm 34mm~44mm 45mm~56mm 57mm~80mm 82mm~120mm 125mm~175mm 180mm~200mm 4mm 15mm~24mm 25mm~34mm 35mm~44mm 45mm~58mm 60mm~85mm 90mm~130mm 135mm~180mm 185mm~220mm 5mm 15mm~25mm 26mm~42mm 45mm~70mm 75mm~125mm 130mm~180mm 185mm~220mm 5.7mm 30mm~75mm 80mm~125mm 130mm~175mm 180mm~220mm