VEVOR Rubber Curb Ramp, 33069 lbs Load Capacity, 2 Inches Rise Height Heavy Duty Rubber Threshold Ramp with Drainage Tank for Wheelchairs, Strollers, Motorcycles, Cars, Lawn Mowers & Trailers, 2 Pack

The Drill bit size for installing the ramp is  M12 If this answer does not resolve your current issue, please contact us again for assistance.

Yes, each piece is 38".