Specification:2mm paddle clamp, bottom hole is 2mm, head clamp propeller threaded rod is M32.3mm paddle clamp, the bottom hole is 2.3mm, the head clamp propeller threaded rod is M44mm paddle clamp, bottom hole is 4mm, head clamp propeller threaded rod is M65mm paddle clamp, bottom hole is 5mm, the head clamp propeller threaded rod is M86mm paddle clamp, bottom hole is 6mm, head clamp propeller threaded rod is M12 Package included:1x propeller clip