Master Aqua Elfin -10” Owner's Manual page 29

EN
DO NOT over-inflate the board. A max pressure of 15 psi is adequate.
The easiest gauge of a good working pressure is to have the
chambers inflated to a firm pressure when you press on them.
DO NOT pump to a high pressure and let the board sit out in the hot
sun. if the board is going to be in a warm environment, slightly
deflate the board and allow the heat from the sun to increase the
internal pressure. When paddling the colder temperature of the
water may cause a slight loss in chamber pressure. It is a good idea to
carry a pump with you so that you can add some air to the chambers
if necessary.
ALU telescopic ISUP paddle
Your board paddle comes in three pieces. To build the paddle, hold
the button in while sliding the pieces together until they click into
place. The last section (top) of the paddle is adjustable.
To find the ideal height for your paddle, start by building the paddle
so it is 6 inches taller than your own height. From this point, adjust
the top section up or down until the length is comfortable for you . a
longer paddle is better suited for a smooth, easier paddling motion. A
shorter paddle is good for performance or competition riding.