Canon Zoom Wide Angle-Telephoto EF 24-105mm f/4L IS USM 2x Teleconverter (4 Elements) + Nwv Direct Microfiber Cleaning Cloth.<div style="text-align: left;"><strong>[Product Information]</strong><ul><li id="replacementPartsFitmentBullet" class="aok-hidden" data-doesntfitmessage="We're not sure this item fits your " data-fitsmessage="This fits your "><span class="a-list-item"><span id="replacementPartsFitmentBulletInner"><a href="#" class="a-link-normal hsx-rpp-fitment-focus">Enter your model number</a>to make sure this fits.</span></span></li><li><span class="a-list-item"> 4-elements </span></li><li><span class="a-list-item"> Multi-coated Optical Glass with anti-reflection coating </span></li><li><span class="a-list-item"> Doubles focal length of lenses </span></li><li><span class="a-list-item"> Manufacturers' Lifetime Warranty </span></li><li><span class="a-list-item"> Item Includes: Case， Protective Lens Cap， Nwv Direct Micro Fiber Cleaning Cloth </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41iF%2BmQ44GL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41VUR3bnOML.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51mf7VSkjXL.jpg" noproxy>