The siren is a predictable board all the way around that's geared for the beginner to intermediate wakeboarder looking to find an affordable setup. The siren features enhanced double barrel channels exiting the tip and tail of the board, a continuous rocker and 1.35" flank fins for predictable tracking and precision edge hold. Length:135 cm (53.15 In)mid width:16.75 In (42.54 Cm) rocker:2.25 In (5.71 Cm) rocker type:continuous skill level:beginner/intermediate construction:pbt top w/ injection foam core fin configuration:one 1.35" flank fin on each end rider weight:100 lbs (45 kg) to 180 lbs (82 kg)stance width:21 in (53.34 Cm) to 25 in (63.5 Cm)