Table:
text: Disk'O
Versions
Versions
Model_name Length_ Width Height Riders Capacity Description Portable Notes_
Skater 21.5 m (71 ft) 11.65 m (38.2 ft) 10.69 m (35.1 ft) 24 600 Small halfpipe with inwards-facing seats. Yes 
Disk`O 24.55 m (80.5 ft) 9.68 m (31.8 ft) 10 m (33 ft) 24 600 Small halfpipe with outwards-facing seats. Yes 
Surf`s Up 29 m (95 ft) 11 m (36 ft) 7.5 m (25 ft) 20 480 Small halfpipe with hill in middle. Guests stand on rectangular platform. Yes 
Mega Disk`O 37.5 m (123 ft) 10 m (33 ft) 15.5 m (51 ft) 24 600 Large halfpipe with outwards-facing seats. No 

text: Disk'O
Versions
Versions
Model_name Length_ Width Height Riders Capacity Description Portable Notes_
Mega Disk`O 37.5 m (123 ft) 10 m (33 ft) 15.5 m (51 ft) 40 1000 Large halfpipe with outwards-facing seats. No 
Skater Coaster Unknown Unknown Unknown Unknown Unknown Large halfpipe with hill in middle. Inwards-facing seats. Unknown N/A
Disk`O Coaster 81.5 m (267 ft) 11.3 m (37 ft) 15.5 m (51 ft) 24 500 Large halfpipe with hill in middle. Outwards-facing seats. No 
Disk`O Coaster 81.5 m (267 ft) 11.3 m (37 ft) 15.5 m (51 ft) 40 600 Large halfpipe with hill in middle. Outwards-facing seats. No

Question: Total number of models created by disk'O ?