O Ring kit 376PCS
actual size of o rings: 31.70mm*3.50mm, 33.70mm*3.50mm, 14.80mm*2.40mm, 7.80mm*1.90mm, 39.40mm*3.10mm and other different sizes, you can refer to the pictures below.
the size of the box: 28.50cm(length)*19.50cm(width)*6.00cm(height)
the weight: about 0.700kg/ box