COBRA DARKSPEED Sleeve with AutoFlex Driver Shaft

The Auto Flex Shaft features Dumina's proprietary technology, automatically adjusting to various swing types.

Its lightweight design reduces player fatigue, while its soft yet stable performance increases driving distance.

Available colors include pink, black, or rainbow.

Specifications:

Product Name: Auto Flex Shaft

Flex: SF305X, SF405, SF505, SF505X, SF505XX

Length (inch/number): 45 inches

Weight (g): 41, 44, 50, 53, 57

Shaft Diameter (Tip): 8.5 mm

Key Features:

Auto Flex Shaft

Self-adjusting golf shaft

Increased distance

Improved swing speed

Dumina Technology

Driver Shaft