Requires some assembly. It has the ability to be easily cut into individual pieces by hand, to adjust to the required length or supplement. The rods are quite flexible if they need to be opened, for example.
Satisfied with the installation experience (I used a hot glue gun)

It was used in an external AC unit to deter Patisia pigeons, and it worked. Two were enough to get the job done, but I believe three would have been perfect. It can even be applied with a silicone gun. 5/5

It was easily installed with straps (tie wraps) and has lasted a long time. Over time, the fastening may need to be replaced because it is outdoors.

Flexible elastic base, very convenient to cut it at a point you desire as a 'supplement' when covering a surface lengthwise, such as balcony railings. The spikes have a slight incline that easily bends a little more by hand to accommodate, for example, above the external air-conditioning unit, without damaging the repellent. Very good product and definitely worth its money