Image Blinking in C# Winform

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace NewFurniture
{
public partial class Test : Form
{
public Test()
{
InitializeComponent();
}

private void timer1_Tick(object sender, EventArgs e)
{
this.pictureBox1.Visible = !this.pictureBox1.Visible;
}

private void Test_Load(object sender, EventArgs e)
{
timer1.Interval = 250;
timer1.Start();
}
}