I have two spider spawners both located on smp5 for sale. This is NOT a double spawner, they are seperate. There is no Grinder built it is just the spawner. They are located fairly close to spawn (under 5K away) P.M. me with offers, im asking 5-10K price negotiable. http://empireminecraft.com/threads/guide-selling-mob-spawner-locations.9738/