Specification:

• Hole Quantity: 16;Hole Diameter: 5mm / 0.2″
• Package Content: 1 x Bowen Speed Ring Adapter
• Total Size: 6cm x 17cm / 2.4″ x 6.7″ (T*D)
• This speed ring is for mounting softbox to any studio lighting fixture that has a Bowen Style mount.
• There are 16 slots for the mounting rods to accommodate all size and shape of softboxes including square, rectangular, strip, octagon, and hexagon.