This Knee Kick is the perfect tool for quick and easy carpet repair and stretching. The Knee Kicker comes with a Black case for tool protection and easy storage. The length easily adjust from 17 to 21. Made with die cast aluminum and a non-slip hand grip with ensure a quality repair job. Plus an easy to adjust pin dept dial to ensure proper catch. • Length easily adjusts from 17 to 21 • Lightweight, durable die cast aluminum body Easy to adjust pin depth dial