Sketching & Wireframing kit is a free set of elements for sketching and wireframing. It consist of form elements, icons, indicators, feedback messages, tooltips, navigation elements, image placeholders, embedded videos, sliders and common ad banners.
The Kit comes in two vector formats, one for Adobe Illustrator and the other in SVG vector format that can be easily modified. It can also be downloaded in PDF and EPS formats. The kit is completely free, which means that you are allowed to use it for personal and commercial projects. You are not allowed redistribute it.
Download kit for Adobe Illustrator (663 kb)
Download kit in SVG vector format (348 kb)
Download kit in PDF format (293 kb)
Download kit in EPS format (364 kb)
And here is Sketching & Wireframing Kit preview (click to see the image in full size)