Heavy duty clamp has a spring-loaded mechanism which prevents the posts from slipping or dropping. 

This smart system allows one hand height adjustment while holding the animal with the other. 

The post is fabricated of heavy duty 1" square, 14 gauge stainless steel tubing. 

Adjusts in height from 12" to 40" and accommodates table tops up to 1-1/4" thick

Stainless steel protection plate included to protect underside wood integrity