This is a 90mm extension adapter with a guide, made of aluminum. (Total length 110mm) It is lightweight and durable. It supports a base diameter of 5mm for the rod tip. The thicker pipe is 30mm long, the thinner pipe is 90mm long, the overlapping part is 10mm, the total length is 110mm, and the weight is approximately 2.8g. The inner diameter of the line guide is approximately 4mm, and the height is approximately 11mm. Since it is handmade, there may be slight variations. Even with the same base diameter of 5mm, there may be slight differences in thickness depending on the manufacturer. If adjustment is necessary, please use aluminum foil, etc. (The holes are made slightly wider and the shaft slightly thinner to make adjustments easier) ◆If you purchase multiple items, we will discount the shipping cost, so please comment in advance. Species...Smelt