1、 Rubber material, PC shell, not afraid of falling. The texture is soft and elastic. Does not hurt the pole. 2、 There are ten rows of holes on the adjustable belt, which can be adjusted according to the rod diameter. Recommendation: The rod diameter is less than 27.5mm. 3、 If the fish is hooked and disengaged in about 1 second, the alarm will sound for 2 times; if the fish is hooked for more than 1 second, the alarm will continue to sound for 10 seconds, and the information is conveyed correctly. 4、 Double alarm with bell and light; night fishing is stress-free, eye-catching red light, and clear at long distances. 5、 The non-slip pole seat and slot design make the combination tighter and it is not easy to shake after being fixed. 1* Fishing Rod Alarm Material: PC, rubber Colour: Black Size: about 7.2* 3.7cm The recommended rod diameter is less than 27.5mm Battery: 3*LR44 button battery Applicable scenarios: sea pole, long-distance casting, rock fishing