All new, 2’ Spine. All new and improved,The greatest new feature on our Spine ramp is the Super Tough ABS Plastic riding surface, its grippy for traction and is custom made for Ramptech. Unlike other ramp companies, who are selling unprotected raw plywood (soon to be splinters!), we are offering pre-drilled exterior grade black laminated HDO plywood sidewalls and a custom ABS Plastic top surface that will not splinter or rot!. These products are completely durable and long lasting. BTW- Ramps are described by the height measurement -AKA 2' Quarterpipe.