For GMod9 users, add these lines to any .TXT file in the Settings\Menu_props\ folder:

	"1 Ton Mass"				"models\Teh_Maestro\1tonmass\1tonmass.mdl"
	"500 Kg Mass"				"models\Teh_Maestro\500kmass\500kmass.mdl"
	"250 Kg Mass"				"models\Teh_Maestro\250kmass\250kmass.mdl"
	"100 Kg Mass"				"models\Teh_Maestro\100kmass\100kmass.mdl"

Credits: Everything- Teh Maestro