These come ready to be mounted on a head by either drilling holes in the bottom and sewing, or gluing them down directly, or any of the other commonly used methods of horn attachment. (Strong magnets, screws/bolts/etc)
Replicas of real horns, these weigh only a few ounces; much lighter than the real thing! However since they are made from natural horns, there can be differences in size/symmetry/details.
Each set can very on weight since they are hand slushed, but most sets will be about the same. While these are very durable, if enough pressure is applied they can break. Heat can also cause warping.
Due to the ridges naturally occurring, if you choose this option in black the resin could bubble around the ridges. We do try to avoid this, and it isn't super noticeable, but we just want to throw it out there that it could happen.