【High Quality Materials】 These O-ring sealing washer assortment are made of acrylonitrile-butadiene rubber, which are resistant to wear. They have good aging resistance and air tightness. They are durable and long service life. 【Easy To Choose & Storage】 This garden hose washers set is coming in a see-through divided and labeled organizer box, which is very convenient for storage and picking. You can save your effort in tidying up and choosing sizes. 【18 Popular Sizes】 You will receive 141pcs rubber plumbing gaskets in 18 commonly used sizes. It contains three types:Rubber Washers, Fiber Washers and EVA Washers. They are small, delicate, fine, durable and strictly functional. 【Widely Application】 This 141PCS rubber Faucet Washer gasket set is widely used in automotive, electronics, chemical, antisemitic, flame retardant, food and other industries. 【Easy to Install】 You can press the seal into the seat hole by using a special tool, and then use a simple cylinder to protect the lip from the spline. You can apply some lubricating oil to the lips for facilitate installation.Manufacturer: onesike Model Number: Tool012 Part Number: Tool012Why You Choose Our Rubber O-Rings Seal Gasket Assortment Kit? 1.The O-ring kit is made of high quality rubber, which have good sealing performance and high temperature resistance. 2.Suitable for sealing of faucets, valves, pipes and accessories to prevent leakage, etc. 3.Comes with a storage case that keeps each size separated and organized well. 4.141 Pieces 18 popular sizes o-ring sealing set meet almost all your needs. 5.The O-ring gasket washers are flexible, which is easy to install with simple tools. Specification Color: Red/ Black Material: Rubber+Silicone Package Size: 23x10.5x3cm/ 9x4.1x1.2inch Details are as follows： 10PCS: 4x17x4mm 8x18x4mm 8x14x4mm 9.5x17.5x4mm 10x14x1.8m 12x18x1.2mm 16x20x1.2mm 21x25x1.2mm 16x24x1.2mm 16x24x1.5mm 12x18x1.5mm 5PCS: 4x16x4mm 10.5x14x4mm 12x24x2mm 15x24x3mm 27x32x2mm 3PCS: 28x36x1.2mm 30x36x2mm Notes 1.Due to manual measurement, the size may have a certain error. 2.Please contact us if you have any problems about our products. Package Included 141 x O-Ring sealing gaskets.