Very convenient-You don't have to rely on plug to your non-battery guitar effects, so that you can perform around the world.Generally applicable-Great for - guitar pedals with 55mm 21mm male plug and negative centerThey work perfect if your board has more pedals than your brick.Stable -You can use a separate battery for each guitar pedal, so that the supply will not be affected, and the guitar pedal effect is stable.High quality sound-The most pure electric current can be obtained by using the battery. That can reduce pedal noise to a minimum.9V battery cord can help you get out of the narrow room. Bring your guitar and guitar effects to travel with you.9v battery supply line can give you guitar pedal with a dedicated supply, current is stabilized so that your pedal to obtain the best sound.Wire specifications: 2464 24AWG X2CLoad range: 3V-36Vcolour:blackMaterial:PVCsize:Length: 12CMProduct specification: DC 55mm*21mmPackage Contents:6 * Guitar pedal cableOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.