"Well. I guess we have a fountain now. Someone start digging a moat."
Mechanics & Inner Workings
Ring gates are a pair of linked metal rings, connected via very strong transportational magic. The gates will transfer matter, light, and sound through them. The gates will remain linked so long as they are in the same plane as eachother, and within 100 miles of each other. The gates can support the transfer of up to 1,000 lbs of matter per day; more than this, and the gate "shuts down" and needs to "cool down" for 24 hours. Objects that are pushed partway through, then returned, do not overwork the gate, and thus do not count towards its daily "limit".