Carbon fiber sheet is wrapped around an aluminum pipe. It is lightweight and durable. Compatible with a 5mm base diameter tip. The thicker pipe is 50mm long, the thinner pipe is 30mm long, the overlapping part is 10mm, the total length is 70mm, and the weight is approximately 1.9g. Since it is handmade, there may be slight variations. ★ Even with the same 5mm base diameter, there may be slight differences in thickness depending on the manufacturer. If adjustment is necessary, please use aluminum foil, etc. (The hole is made slightly wider and the shaft is made slightly thinner for easy adjustment) ◆ If you purchase multiple sets, we will reduce the shipping cost, so please comment in advance.