1、Aluminum Alloy and Plastic: This black billiard cue plug is made of premium aluminum alloy and plastic material, which is sturdy, and has a long service life. 2、Anti Collision: The bottom cover of the billiard pole can effectively preserve the bottom of the billiard pole, prevent the collision damage. 3、Small Size: The rear plug is small in size and light in weight, which will not burden the billiard pole, and is easy to carry and store, convenient and practical. 4、Purpose: The back plug screw of the billiard cue is used to connect the cue and the extension handle, which is convenient for use. 5、Billiard Cue Accessory: A great accessory for billiard lovers, for all users, this is a great choice to help billiard training and exercising.