EPS core. PP slick. Crescent tail. 3mm closed cell XPE desk skin. Bottom graphic. Double rails. PP leash with velcro wrist cuff.
A tough 3mm closed-cell XPE deck is wrapped across the top. Strong and durable high density pressurised EPS foam core. Heat laminated not glued construction for greater board longevity. A thick 1mm PP slick gives extra durability and flex. Curved rail profile, letting the board flow better in the water. Basic leash included.
 
The easiest way to size a board for beginners as an adult  is to measure the height of your belly button from the floor when standing in inches then add about 10% so I'm 40" I ride 44-45" boards. as you gain more experience & ride in bigger conditions  the board can get smaller.
 
For children measure their chest height from the floor, then for teenagers grudually work down to the adult mneasurment as they grow.