SPI Supplies^® Brand Linen Testers

These collapsible and folding plastic frame pocket magnifiers, commonly referred to as "linen testers", are popular with science teachers because of their low cost and high durability and also their resistance to moisture making them appropriate for outdoor use. Plastic frames are not for everyone since they lack the higher precision of the (somewhat more expensive) metal frame equivalents, either in the PEAK® or SPI Supplies® brands.

• Housing made from black molded plastic
• Fold flat to fit in pocket
• Very light weight
• Economical (ideal for class room use)

		SPI #	Each	10+, Each		In Stock
	Plastic linen tester, 5x Outside base: 1.6875 x 1.5625" (43mm x 40mm) Inside measuring area: 1 x 1" (25mm x 25mm) Height: 2.25" (57 mm)	02327-AB	$19.38	$17.44		Yes
	Plastic linen tester, 7x Outside base: 1.6875 x 1.5625" (43mm x 40mm) Inside measuring area: 0.75 x 0.75" (19mm x 19mm) Height: 1.75" (44.5 mm)	02328-AB	18.31	16.48		Yes
	Plastic linen tester, 10x Outside base: 1.0625 x 0.9375" (27mm x 24mm) Inside measuring area: 15 x 15 mm Height: 1.31" (33.3 mm)	02329-AB	17.23	15.51		Yes