Product description: Specification:The overall length of this probe is 40''with a sample ejector length of 9.8'. The diameter of the probe is 1.7''. Application:Soil probes are robust and easy to use, used to collect small diameter samples at or near the ground surface. Material:Gator probe are made of 304 Stainless Steel, ensure rust resistance and corrosion resistance for entire unit. Easy to use:Probes are outfitted with a side foot-step and bulldozing rod allows the user to easily step the probe into the ground. Handle is fitted with rubber grips for operator comfort. Thoughtful Design:The alligator style opening allows every core to be inspected and easily extracted, allowing the sampler to ensure the core is a quality sample that represents the intended area.