The Intelli-Stayk (TM) is built to hold the strongest dogs. The Intelli-Stayk(TM) incorporates Surface-Lock(TM) technology and the extra-wide, easy twist handle makes it easy to insert in the ground by anyone, without tools. Almost invisible when installed, the Intelli-Stayk(TM) is aesthetically appealing in any yard. Enjoy total piece of mind knowing that your pet is safe and secure out in your yard while using this tie out stake. Just push the Surface lock cup (TM) (teeth side down) with your foot into the ground and then screw the tie out stake into the ground. Make sure that the 2 "lock" together. Its that easy-123! Satisfaction is 100% guaranteed.