Length is 16 cm Weight:0.8-1.0mm is about 50g/box 1.5mm is about 60g/box 2.0mm-7.0mm is about 80g/box Each Box Quantity: 0.8mm is about 530 PCS 1.0mm is about 400PCS 1.5mm is about 210PCS 2.0mm is about 100PCS 2.5mm is about 90PCS 3.0mm is about 65PCS 3.5mm is about 50PCS 4.0mm is about 40PCS 4.5mm is about 30PCS 5.0mm is about 25PCS