Product features:

• The McDermott 4″ Joint Extension adds 4 inches between the butt and shaft on McDermott, Star, Lucky pool cues with 3/8″-10 joints
• Lightweight (~2.7 oz) and easy to use

Product specifications:

• Extension diameter: 0.855″
• Length: 4″
• Joint type: 3/8″-10
• Color: Black
• Net weight : ~2.7 oz (~77 gr)
• McDermott logo

The Joint Extension is an aftermarket item. Please note that your cue may not roll perfectly straight with it installed.