Unable To spawn Multiple Objects

using UnityEngine;
using System.Collections;

public class SpawnScript : MonoBehaviour
{
public float time;
public static int size;
private int prop_Number;
public float ModValue;
public Object Spwan_props = new Object ;

// Use this for initialization
void Start () 
{
	InvokeRepeating("spawnArandomProp" , 0.2f , time);

}

void spawnArandomProp()
{
	prop_Number = Random.Range(	0,1);
	ModValue*=-1;
	transform.position = new Vector3(Random.Range(-6,6)+ModValue , 5,0);
	Instantiate(Spwan_props[prop_Number] , transform.position , Quaternion.identity);
}

}

Erm care to add a question to that code sample?