It's short and free version of Frames Wireframe Kit.
Full version - https://gumroad.com/l/SrUNJ
Presentation - https://ui8.net/products/frames-wireframe-kit
Frames - Wireframe Kit full of high fidelity assets and components for Sketchup 3.5 +.
You can use Frames to create prototypes and wireframes with ease for your next big project. Frames is designed for 10 popular categories with more then 100 components & layouts. Combine components, resize, edit, reuse and keep your design process fast and smooth!