This was a replacement part for a Dremel tool as advertised. It arrived in the mail 2 days after I ordered it and was installed and up and running in about 30 minutes. The only reason for 4 stars instead of 5 is that the price is quite high for a piece that is 1 inch long and 10 millimeters in diameter. be a Tygon pipe. I understand it's extruded internally with splines, but I assume a piece of non-slotted pipe (from Home Depot) would work just as well.