Fi-Shock MP-1929 Screw-In Insulator (25 Pack)， Large<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>25 Large screw-in insulator for wooden posts</li><li>Can be used with steel wire， aluminum wire， polyearope and polywire (not recommended for polytape)</li><li>Comes in white color porcelain</li><li>Lifetime Guarantee</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41NTjJyrQFL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51Denrb77pL.jpg" noproxy>