Apparatus has dowel pins that fit into pre-drilled holes on platform surface. Package also includes a 6'5"L x 6"W x 3"H balance beam with non-slip treads. Manual platform: 10'L x 15"to 28"W x 29"to 42"H. Electric platform: height adjusts electrically from 29" to 44". Features push button controls and digital bar height readout.