1.high quality with low price 2.we have stock for size 1.5mm to 20 3.supplier to BOSCH spring pins,heavy type, spring pins,heavy type,elastic cylindrical pinMaterial SizeFinishPackingPayment termSpring steel1.5mm-20mmBlack100-500pcs in small boxT/TSS3041.5mm-20mmPhosphatingCarton box 25kg A21.5mm-20mmzinc-plated as required