20"Ram
Specifications:
Length open.....21.0 in. (533 mm)
Length closed...15.4 in. (391 mm)
Width overall...12.8 in. (325 mm)
Weight..........22.5 lbs. (10.2 kg)

30" Ram
Specifications:
Length open.....29.1 in. (739 mm)
Length closed...19.3 in. (490 mm)
Width overall....8.5 in. (216 mm)
Weight..........27.0 lbs. (12.2 kg)

40" Ram
Specifications:
Length open.....40.0 in. (1016 mm)
Length closed...25.4 in. (645 mm)
Width overall....8.5 in. (216 mm)
Weight..........33.0 lbs. (15.0 kg)

60" Ram
Specifications:
Length open.....60.3 in. (1532 mm)
Length closed...35.5 in. (902 mm)
Width overall....8.5 in. (216 mm)
Weight..........43.5 lbs. (19.7 kg)