Features:

Assortment O-Rings with convenient resealable plastic case
Total 18 most popular used O-ring Sizes
Hydrogenated Nitrile Butadiene Rubber (HNBR), also known as Highly Saturated Nitrile (HSN) is special class of nitrile rubber (NBR) and is for mission critical applications
HNBR can be formulated to meet application temperatures ranging between -45 degrees C and 165 degrees C, and HNBR is classified by ASTM as DH-type polymer

Specification：

Material: Rubber
Housing color: black
Size types: 18 sizes (as picture show)
Quantity: 1 set (225 pieces)
20 Pc - 3 x 1mm 20 Pc - 4 x 1mm
20 Pc - 4.5 x 2mm 20 Pc - 5 x 2mm
20 Pc - 6 x 2mm 20 Pc - 6 x 2.5mm
20 Pc - 6 x 3mm 20 Pc - 7 x 2mm
20 Pc - 8 x 2mm 5 Pc - 9 x 2mm
5 Pc - 10 x 2mm 5 Pc -12 x 3mm
5 Pc - 13 x 3mm 5 Pc - 14 x 2.5mm
5 Pc - 17 x 2.5mm 5 Pc - 18 x 4mm
5 Pc - 20 x 2mm 5 Pc - 22 x 2mm
MEAS：43X23X19.5 CM

Package include:

1 x 225Pcs Set Rubber O Ring

Note:

Due to the difference between different monitors, the picture may not reflect the actual color of the item. Please understand, Thank you.