Wonder Pups are wonderfully useful stock control devices made especially for benchtops 2" thick or less. They mount in 3/4" drilled holes to provide the moving half of a standard bench dog system without the need for a tail vise, so (together with Veritas Round Bench Pups, #019715) they're perfect for retro-fitting into benches built without dogs. They can also be used in multi-directional, multi-dog holding systems (they pivot in any direction), shop-built wooden clamps, and holding or shaping jigs. The post is 2-5/8" long. A steel spring wire keeps it from slipping even in 1-1/2" thick tops. The screw angles downward 2" for secure grip. The brass clamp face is 3/4" high; the post stands 7/8" minimum above the bench.