This beach cruiser is brand new and sold in the box, already about 80% assembled for you.
You can assemble the rest at home. It is easy and lasts only a few minutes.
Professional assembly can be done in your nearest bike shop for low cost.

Open the box:

Lay down all the parts on cartoon box. That way you will not scratch the frame.

Carefully remove the remaining plastic covers. It is easy to scratch your new bike so be very careful.

First attach the front fender. You have to do it before putting on the front wheel.
Tighten the bolts just by hand.

Loose the bolts on each side of the front wheel. Stand the bike and attach the front wheel.

Tighten the bolts by hand (make sure that the security washer is correctly installed) and then use wrench for final tightening.
Then put kick stand down and stand bike upright.

Install handlebars.
The stem of the handlebars will fit into a hole on top of the fork.
Insert stem and adjust to your desired height.
Then tighten the bolt on top of the handlebars.

Adjust the angle of the handlebars.
First loosen the bolts, adjust the angle and then tighten them.

Open the small box.
It has pedals, reflectors and some long bolt, washer, nut and two small bolts.
The bolts and nut are for fenders installation.
If you purchase fenders you will need them so don’t throw them away.

Install pedals.
One pedal is for right side and the second for left side.
They are not interchangeable!
Check the “R” and “L” to see which pedal is right and left.

The left pedal must be tightened using opposite (left) rotation.

Install seat.
Insert seat post in to the bottom of the saddle and tighten it up.

I also recommend to tighten the nuts in the bottom of the saddle.
If you saddle is making squeaking sound it will disappear after tightening of these nuts.

I also recommend to tighten the nuts in the bottom of the saddle.

Secure seat post.

Pump the tires.

It is all done.
Congratulations!