Curb and Ramp Training Set includes three curbs with handles can be nested and conveniently stored under ramp platform. Natural wood finish with anti-slip safety tread in ramp. Ramp platform 44in. x 84in.. Ramp incline graduates from 3/4in. to 8in. high. Curb sizes: 40in. x 40in. x 6in., 36in. x 36in. x 4in., 32in. x 32in. x 2in..