Lixit Quick Lock Flip Top Water Bottle with ValveLixits Quick Lock Flip Top Water Tank features a heavy duty quick lock bracket for height adjustment. No wires to misplace or lose. Once bracket is attached it stays on the cage. No need to remove bottle from your pets cage when filling with water. Heavy duty quick lock bracket for height adjustment No need to remove bottle from cage when refilling No wires to misplace or lose Drinking valve tip should be at shoulder height.