name	profile	symbol	width of the roller	width of the incursion	diameter of the roller	incursion length	design picture
seat for incursion	-	GN	-	-	-	-
	LZ/500	20	-	-	500
leading roller with an angle bar	30x30x2	RB-25K	34.5	-	25	-
leading roller with an angle bar	40x40x3	RB-33K	35.5	-	33	-
leading roller with an angle bar	40x40x3	RB-33KŁ	25	-	33	-
leading roller with an angle bar	50x50x3	RB-43K	33	-	43	-
roller for incursion	70x70	RN-70	18	60	60.5	130
roller for incursion	80x80	RN-80	21	68	68.5	140