Knife Switch - Single knife, double throw Male Urinary System Model For children less than 12

For children less than 12 years

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Premium Quality: Pinhole Camera is made of high-grade construction all the way through

Mounted on a Cast Iron Stand

Knife Switch - Single knife, double throw Male Urinary System Model For children less than 12Single knife, double throw. Size: 3. 5 x 7. 2cm. Durable plastic base knife switches that stand up during tough student use. Poles and knives are made of brass for good electrical connections. Premium Quality: This product is made of high grade construction all the way through, excellent build quality and proven reliability across the range. Designed for use in professional laboratories but is an ideal choice for science classrooms and household use.