ITEM NO. & NAME:	SIZE	CAPACITY	CAT NO:	PRICE
1 - glass prism or block (for ray box)	for standard 7 X 7 cm	16	88P005	$19.50
2 - slit plate (for ray box)	for standard 5.5 X 5.5 cm	16	88P012	$19.50
3 - round lenses / mirrors	up to 5 cm diameter	16	90P016	$19.50
round lenses / mirrors (not shown)	up to 10 cm diameter	16	90P017	$24.50
round lenses / mirrors (not shown)	up to 15 cm diameter	16	90P018	$29.50
4 - plane mirrors (for ray box)	or standard 15 X 4 cm	16	90P019	$19.50
5 - protractors	for standard 10 cm plastic	16	90P020	$19.50
rulers (not shown)	or standard 12"	16	90P021	$19.50
pencils (not shown)	for standard pencil	16	90P022	$19.50
6 - plano-lenses (for ray box)	for flat standard 1 X 2 X 6 cm	16	90P031	$24.50