This is a set of a high-sensitivity smelt rod tip and a 30mm extension adapter. (The adapter can be changed to 40, 50, or 60mm at no extra charge, so please comment after purchase.) The high-sensitivity rod tip allows you to clearly detect delicate bites. The unique flexibility of bamboo provides excellent hooking. This versatile rod tip is compatible with a wide range of weights and is easy to use. (When combined with the variable adapter, it should be compatible with almost any weight size.) ▪ Length: 27cm ○ The bamboo has been heat-treated and oil-extracted. ○ After shaping to adjust the action, a transparent lacquer is applied in multiple coats to improve water resistance, strength, and appearance. (The lacquer is said to gain more luster and strength over 20 years.) ○ The guides are made of 0.35mm stainless steel. ○ The tip is painted with red fluorescent paint. ○ The base diameter is 5mm aluminum pipe, the same general thickness as Shimano and Daiwa rods. ★ Heat-treating bamboo changes its internal composition and increases its strength. Also, the unique flexibility of the bamboo's plant fibers provides good hooking and reduces the chance of the fish escaping. ☆ Please understand that this is handmade by an amateur, and purchase accordingly.